sched_ext: Maintain an online cid mask in the scheduler arenagrafted

Schedulers on the default cid mapping treat [0, nr_online_cids) as the
online set and restart on hotplug. Schedulers that install their own mapping
with scx_bpf_cid_override() have no way to learn which cids are online: the
count no longer identifies members and the CPU-form cpumask is unusable from
cid programs. This is an obvious hole in the cid API.

Add scx_bpf_online_cmask(), a kernel-maintained cmask in the scheduler's
arena, allocated alongside the per-CPU scratch masks and populated after the
cid mapping is finalized and before ops.init(), for child schedulers too.
The pointer stays valid through ops.exit() with no reference to take. It is
the arena offset as a void pointer, the same form struct_ops arena arguments
arrive in. The verifier types the void return as a scalar for the program's
arena cast.

The mask follows the SCX hotplug notifications: seeded from cpu_active_mask
and updated before ops.cid_online/offline() runs, so it lags cpu_online_mask
only inside a hotplug transition. Updates walk the scheduler list under the
lock that also serializes unlinking. Reads are live, not atomic snapshots.
Root initialization excludes hotplug.

v2: Reworded the getter kerneldoc (Andrea Righi).

Signed-off-by: Tejun Heo <tj@kernel.org>
Reviewed-by: Andrea Righi <arighi@nvidia.com>

27 files changed, 3659 insertions, 0 deletions

diff --git a/security/apparmor/include/af_unix.h b/security/apparmor/include/af_unix.h
new file mode 100644
index 000000000..4a62e600d
--- /dev/null
+++ b/security/apparmor/include/af_unix.h
@@ -0,0 +1,55 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * AppArmor security module
+ *
+ * This file contains AppArmor af_unix fine grained mediation
+ *
+ * Copyright 2023 Canonical Ltd.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation, version 2 of the
+ * License.
+ */
+#ifndef __AA_AF_UNIX_H
+
+#include <net/af_unix.h>
+
+#include "label.h"
+
+#define unix_addr(A) ((struct sockaddr_un *)(A))
+#define unix_addr_len(L) ((L) - sizeof(sa_family_t))
+#define unix_peer(sk) (unix_sk(sk)->peer)
+#define is_unix_addr_abstract_name(B) ((B)[0] == 0)
+#define is_unix_addr_anon(A, L) ((A) && unix_addr_len(L) <= 0)
+#define is_unix_addr_fs(A, L) (!is_unix_addr_anon(A, L) && \
+			    !is_unix_addr_abstract_name(unix_addr(A)->sun_path))
+
+#define is_unix_anonymous(U) (!unix_sk(U)->addr)
+#define is_unix_fs(U) (!is_unix_anonymous(U) &&			\
+		       unix_sk(U)->addr->name->sun_path[0])
+#define is_unix_connected(S) ((S)->state == SS_CONNECTED)
+
+
+struct sockaddr_un *aa_sunaddr(const struct unix_sock *u, int *addrlen);
+int aa_unix_peer_perm(const struct cred *subj_cred,
+		      struct aa_label *label, const char *op, u32 request,
+		      struct sock *sk, struct sock *peer_sk,
+		      struct aa_label *peer_label);
+int aa_unix_sock_perm(const char *op, u32 request, struct socket *sock);
+int aa_unix_create_perm(struct aa_label *label, int family, int type,
+			int protocol);
+int aa_unix_bind_perm(struct socket *sock, struct sockaddr *address,
+		      int addrlen);
+int aa_unix_connect_perm(struct socket *sock, struct sockaddr *address,
+			 int addrlen);
+int aa_unix_listen_perm(struct socket *sock, int backlog);
+int aa_unix_accept_perm(struct socket *sock, struct socket *newsock);
+int aa_unix_msg_perm(const char *op, u32 request, struct socket *sock,
+		     struct msghdr *msg, int size);
+int aa_unix_opt_perm(const char *op, u32 request, struct socket *sock, int level,
+		     int optname);
+int aa_unix_file_perm(const struct cred *subj_cred, struct aa_label *label,
+		      const char *op, u32 request, struct file *file);
+
+#endif /* __AA_AF_UNIX_H */
diff --git a/security/apparmor/include/apparmor.h b/security/apparmor/include/apparmor.h
new file mode 100644
index 000000000..cc6e3df1b
--- /dev/null
+++ b/security/apparmor/include/apparmor.h
@@ -0,0 +1,68 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * AppArmor security module
+ *
+ * This file contains AppArmor basic global
+ *
+ * Copyright (C) 1998-2008 Novell/SUSE
+ * Copyright 2009-2017 Canonical Ltd.
+ */
+
+#ifndef __APPARMOR_H
+#define __APPARMOR_H
+
+#include <linux/types.h>
+
+/*
+ * Class of mediation types in the AppArmor policy db
+ */
+#define AA_CLASS_NONE		0
+#define AA_CLASS_UNKNOWN	1
+#define AA_CLASS_FILE		2
+#define AA_CLASS_CAP		3
+#define AA_CLASS_DEPRECATED	4
+#define AA_CLASS_RLIMITS	5
+#define AA_CLASS_DOMAIN		6
+#define AA_CLASS_MOUNT		7
+#define AA_CLASS_PTRACE		9
+#define AA_CLASS_SIGNAL		10
+#define AA_CLASS_XMATCH		11
+#define AA_CLASS_NET		14
+#define AA_CLASS_NETV9		15
+#define AA_CLASS_LABEL		16
+#define AA_CLASS_POSIX_MQUEUE	17
+#define AA_CLASS_MODULE		19
+#define AA_CLASS_DISPLAY_LSM	20
+#define AA_CLASS_NS		21
+#define AA_CLASS_IO_URING	22
+
+#define AA_CLASS_X		31
+#define AA_CLASS_DBUS		32
+
+/* NOTE: if AA_CLASS_LAST > 63 need to update label->mediates */
+#define AA_CLASS_LAST		AA_CLASS_DBUS
+
+/* Control parameters settable through module/boot flags */
+extern enum audit_mode aa_g_audit;
+extern bool aa_g_audit_header;
+extern int aa_g_debug;
+extern bool aa_g_hash_policy;
+extern bool aa_g_export_binary;
+extern int aa_g_rawdata_compression_level;
+extern bool aa_g_lock_policy;
+extern bool aa_g_logsyscall;
+extern bool aa_g_paranoid_load;
+extern unsigned int aa_g_path_max;
+
+#ifdef CONFIG_SECURITY_APPARMOR_EXPORT_BINARY
+#define AA_MIN_CLEVEL zstd_min_clevel()
+#define AA_MAX_CLEVEL zstd_max_clevel()
+#define AA_DEFAULT_CLEVEL ZSTD_CLEVEL_DEFAULT
+#else
+#define AA_MIN_CLEVEL 0
+#define AA_MAX_CLEVEL 0
+#define AA_DEFAULT_CLEVEL 0
+#endif /* CONFIG_SECURITY_APPARMOR_EXPORT_BINARY */
+
+
+#endif /* __APPARMOR_H */
diff --git a/security/apparmor/include/apparmorfs.h b/security/apparmor/include/apparmorfs.h
new file mode 100644
index 000000000..33243d11f
--- /dev/null
+++ b/security/apparmor/include/apparmorfs.h
@@ -0,0 +1,148 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * AppArmor security module
+ *
+ * This file contains AppArmor filesystem definitions.
+ *
+ * Copyright (C) 1998-2008 Novell/SUSE
+ * Copyright 2009-2010 Canonical Ltd.
+ */
+
+#ifndef __AA_APPARMORFS_H
+#define __AA_APPARMORFS_H
+
+extern struct path aa_null;
+
+enum aa_sfs_type {
+	AA_SFS_TYPE_BOOLEAN,
+	AA_SFS_TYPE_STRING,
+	AA_SFS_TYPE_U64,
+	AA_SFS_TYPE_FOPS,
+	AA_SFS_TYPE_DIR,
+};
+
+struct aa_sfs_entry;
+
+struct aa_sfs_entry {
+	const char *name;
+	struct dentry *dentry;
+	umode_t mode;
+	enum aa_sfs_type v_type;
+	union {
+		bool boolean;
+		char *string;
+		unsigned long u64;
+		struct aa_sfs_entry *files;
+	} v;
+	const struct file_operations *file_ops;
+};
+
+extern const struct file_operations aa_sfs_seq_file_ops;
+
+#define AA_SFS_FILE_BOOLEAN(_name, _value) \
+	{ .name = (_name), .mode = 0444, \
+	  .v_type = AA_SFS_TYPE_BOOLEAN, .v.boolean = (_value), \
+	  .file_ops = &aa_sfs_seq_file_ops }
+#define AA_SFS_FILE_STRING(_name, _value) \
+	{ .name = (_name), .mode = 0444, \
+	  .v_type = AA_SFS_TYPE_STRING, .v.string = (_value), \
+	  .file_ops = &aa_sfs_seq_file_ops }
+#define AA_SFS_FILE_U64(_name, _value) \
+	{ .name = (_name), .mode = 0444, \
+	  .v_type = AA_SFS_TYPE_U64, .v.u64 = (_value), \
+	  .file_ops = &aa_sfs_seq_file_ops }
+#define AA_SFS_FILE_FOPS(_name, _mode, _fops) \
+	{ .name = (_name), .v_type = AA_SFS_TYPE_FOPS, \
+	  .mode = (_mode), .file_ops = (_fops) }
+#define AA_SFS_DIR(_name, _value) \
+	{ .name = (_name), .v_type = AA_SFS_TYPE_DIR, .v.files = (_value) }
+
+extern void __init aa_destroy_aafs(void);
+
+struct aa_profile;
+struct aa_ns;
+
+enum aafs_ns_type {
+	AAFS_NS_DIR,
+	AAFS_NS_PROFS,
+	AAFS_NS_NS,
+	AAFS_NS_RAW_DATA,
+	AAFS_NS_LOAD,
+	AAFS_NS_REPLACE,
+	AAFS_NS_REMOVE,
+	AAFS_NS_REVISION,
+	AAFS_NS_COUNT,
+	AAFS_NS_MAX_COUNT,
+	AAFS_NS_SIZE,
+	AAFS_NS_MAX_SIZE,
+	AAFS_NS_OWNER,
+	AAFS_NS_SIZEOF,
+};
+
+enum aafs_prof_type {
+	AAFS_PROF_DIR,
+	AAFS_PROF_PROFS,
+	AAFS_PROF_NAME,
+	AAFS_PROF_MODE,
+	AAFS_PROF_ATTACH,
+	AAFS_PROF_HASH,
+	AAFS_PROF_RAW_DATA,
+	AAFS_PROF_RAW_HASH,
+	AAFS_PROF_RAW_ABI,
+	AAFS_PROF_SIZEOF,
+};
+
+#define ns_dir(X) ((X)->dents[AAFS_NS_DIR])
+#define ns_subns_dir(X) ((X)->dents[AAFS_NS_NS])
+#define ns_subprofs_dir(X) ((X)->dents[AAFS_NS_PROFS])
+#define ns_subdata_dir(X) ((X)->dents[AAFS_NS_RAW_DATA])
+#define ns_subload(X) ((X)->dents[AAFS_NS_LOAD])
+#define ns_subreplace(X) ((X)->dents[AAFS_NS_REPLACE])
+#define ns_subremove(X) ((X)->dents[AAFS_NS_REMOVE])
+#define ns_subrevision(X) ((X)->dents[AAFS_NS_REVISION])
+
+#define prof_dir(X) ((X)->dents[AAFS_PROF_DIR])
+#define prof_child_dir(X) ((X)->dents[AAFS_PROF_PROFS])
+
+int aa_create_aafs(void);
+
+void __aa_bump_ns_revision(struct aa_ns *ns);
+void __aafs_profile_rmdir(struct aa_profile *profile);
+void __aafs_profile_migrate_dents(struct aa_profile *old,
+				   struct aa_profile *new);
+int __aafs_profile_mkdir(struct aa_profile *profile, struct dentry *parent);
+void __aafs_ns_rmdir(struct aa_ns *ns);
+int __aafs_ns_mkdir(struct aa_ns *ns, struct dentry *parent, const char *name,
+		     struct dentry *dent);
+
+struct aa_loaddata;
+
+#ifdef CONFIG_SECURITY_APPARMOR_EXPORT_BINARY
+void __aa_fs_remove_rawdata(struct aa_loaddata *rawdata);
+int __aa_fs_create_rawdata(struct aa_ns *ns, struct aa_loaddata *rawdata);
+void __aa_remove_rawdata_symlink_dents(struct aa_profile *profile);
+int __aa_create_rawdata_symlink_dents(struct aa_profile *profile);
+#else
+static inline void __aa_fs_remove_rawdata(struct aa_loaddata *rawdata)
+{
+	/* empty stub */
+}
+
+static inline int __aa_fs_create_rawdata(struct aa_ns *ns,
+					 struct aa_loaddata *rawdata)
+{
+	return 0;
+}
+
+static inline void __aa_remove_rawdata_symlink_dents(struct aa_profile *profile)
+{
+	/* empty stub */
+}
+
+static inline int __aa_create_rawdata_symlink_dents(struct aa_profile *profile)
+{
+	return 0;
+}
+#endif /* CONFIG_SECURITY_APPARMOR_EXPORT_BINARY */
+
+#endif /* __AA_APPARMORFS_H */
diff --git a/security/apparmor/include/audit.h b/security/apparmor/include/audit.h
new file mode 100644
index 000000000..aa00b3440
--- /dev/null
+++ b/security/apparmor/include/audit.h
@@ -0,0 +1,212 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * AppArmor security module
+ *
+ * This file contains AppArmor auditing function definitions.
+ *
+ * Copyright (C) 1998-2008 Novell/SUSE
+ * Copyright 2009-2010 Canonical Ltd.
+ */
+
+#ifndef __AA_AUDIT_H
+#define __AA_AUDIT_H
+
+#include <linux/audit.h>
+#include <linux/fs.h>
+#include <linux/lsm_audit.h>
+#include <linux/sched.h>
+#include <linux/slab.h>
+
+#include "file.h"
+#include "label.h"
+
+extern const char *const audit_mode_names[];
+#define AUDIT_MAX_INDEX 5
+enum audit_mode {
+	AUDIT_NORMAL,		/* follow normal auditing of accesses */
+	AUDIT_QUIET_DENIED,	/* quiet all denied access messages */
+	AUDIT_QUIET,		/* quiet all messages */
+	AUDIT_NOQUIET,		/* do not quiet audit messages */
+	AUDIT_ALL		/* audit all accesses */
+};
+
+enum audit_type {
+	AUDIT_APPARMOR_AUDIT,
+	AUDIT_APPARMOR_ALLOWED,
+	AUDIT_APPARMOR_DENIED,
+	AUDIT_APPARMOR_HINT,
+	AUDIT_APPARMOR_STATUS,
+	AUDIT_APPARMOR_ERROR,
+	AUDIT_APPARMOR_KILL,
+	AUDIT_APPARMOR_AUTO
+};
+
+#define OP_NULL NULL
+
+#define OP_SYSCTL "sysctl"
+#define OP_CAPABLE "capable"
+
+#define OP_UNLINK "unlink"
+#define OP_MKDIR "mkdir"
+#define OP_RMDIR "rmdir"
+#define OP_MKNOD "mknod"
+#define OP_TRUNC "truncate"
+#define OP_LINK "link"
+#define OP_SYMLINK "symlink"
+#define OP_RENAME_SRC "rename_src"
+#define OP_RENAME_DEST "rename_dest"
+#define OP_CHMOD "chmod"
+#define OP_CHOWN "chown"
+#define OP_GETATTR "getattr"
+#define OP_OPEN "open"
+
+#define OP_FRECEIVE "file_receive"
+#define OP_FPERM "file_perm"
+#define OP_FLOCK "file_lock"
+#define OP_FMMAP "file_mmap"
+#define OP_FMPROT "file_mprotect"
+#define OP_INHERIT "file_inherit"
+
+#define OP_PIVOTROOT "pivotroot"
+#define OP_MOUNT "mount"
+#define OP_UMOUNT "umount"
+
+#define OP_CREATE "create"
+#define OP_POST_CREATE "post_create"
+#define OP_BIND "bind"
+#define OP_CONNECT "connect"
+#define OP_LISTEN "listen"
+#define OP_ACCEPT "accept"
+#define OP_SENDMSG "sendmsg"
+#define OP_RECVMSG "recvmsg"
+#define OP_GETSOCKNAME "getsockname"
+#define OP_GETPEERNAME "getpeername"
+#define OP_GETSOCKOPT "getsockopt"
+#define OP_SETSOCKOPT "setsockopt"
+#define OP_SHUTDOWN "socket_shutdown"
+
+#define OP_PTRACE "ptrace"
+#define OP_SIGNAL "signal"
+
+#define OP_EXEC "exec"
+
+#define OP_CHANGE_HAT "change_hat"
+#define OP_CHANGE_PROFILE "change_profile"
+#define OP_CHANGE_ONEXEC "change_onexec"
+#define OP_STACK "stack"
+#define OP_STACK_ONEXEC "stack_onexec"
+
+#define OP_SETPROCATTR "setprocattr"
+#define OP_SETRLIMIT "setrlimit"
+
+#define OP_PROF_REPL "profile_replace"
+#define OP_PROF_LOAD "profile_load"
+#define OP_PROF_RM "profile_remove"
+
+#define OP_USERNS_CREATE "userns_create"
+
+#define OP_URING_OVERRIDE "uring_override"
+#define OP_URING_SQPOLL "uring_sqpoll"
+
+struct apparmor_audit_data {
+	int error;
+	int type;
+	u16 class;
+	const char *op;
+	const struct cred *subj_cred;
+	struct aa_label *subj_label;
+	const char *name;
+	const char *info;
+	u32 request;
+	u32 denied;
+	u32 tags;
+
+	union {
+		/* these entries require a custom callback fn */
+		struct {
+			struct aa_label *peer;
+			union {
+				struct {
+					const char *target;
+					kuid_t ouid;
+				} fs;
+				struct {
+					int rlim;
+					unsigned long max;
+				} rlim;
+				struct {
+					int signal;
+					int unmappedsig;
+				};
+				struct {
+					int type, protocol;
+					void *addr;
+					int addrlen;
+					struct {
+						void *addr;
+						int addrlen;
+					} peer;
+				} net;
+			};
+		};
+		struct {
+			struct aa_profile *profile;
+			const char *ns;
+			long pos;
+		} iface;
+		struct {
+			const char *src_name;
+			const char *type;
+			const char *trans;
+			const char *data;
+			unsigned long flags;
+		} mnt;
+		struct {
+			struct aa_label *target;
+		} uring;
+	};
+
+	struct common_audit_data common;
+};
+
+/* macros for dealing with  apparmor_audit_data structure */
+#define aad(SA) (container_of(SA, struct apparmor_audit_data, common))
+#define aad_of_va(VA) aad((struct common_audit_data *)(VA))
+
+#define DEFINE_AUDIT_DATA(NAME, T, C, X)				\
+	/* TODO: cleanup audit init so we don't need _aad = {0,} */	\
+	struct apparmor_audit_data NAME = {				\
+		.class = (C),						\
+		.op = (X),                                              \
+		.common.type = (T),					\
+		.common.u.tsk = NULL,					\
+		.common.apparmor_audit_data = &NAME,			\
+	};
+
+void aa_audit_msg(int type, struct apparmor_audit_data *ad,
+		  void (*cb) (struct audit_buffer *, void *));
+int aa_audit(int type, struct aa_profile *profile,
+	     struct apparmor_audit_data *ad,
+	     void (*cb) (struct audit_buffer *, void *));
+
+#define aa_audit_error(ERROR, AD, CB)				\
+({								\
+	(AD)->error = (ERROR);					\
+	aa_audit_msg(AUDIT_APPARMOR_ERROR, (AD), (CB));		\
+	(AD)->error;					\
+})
+
+
+static inline int complain_error(int error)
+{
+	if (error == -EPERM || error == -EACCES)
+		return 0;
+	return error;
+}
+
+void aa_audit_rule_free(void *vrule);
+int aa_audit_rule_init(u32 field, u32 op, char *rulestr, void **vrule, gfp_t gfp);
+int aa_audit_rule_known(struct audit_krule *rule);
+int aa_audit_rule_match(struct lsm_prop *prop, u32 field, u32 op, void *vrule);
+
+#endif /* __AA_AUDIT_H */
diff --git a/security/apparmor/include/capability.h b/security/apparmor/include/capability.h
new file mode 100644
index 000000000..1ddcec2d1
--- /dev/null
+++ b/security/apparmor/include/capability.h
@@ -0,0 +1,48 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * AppArmor security module
+ *
+ * This file contains AppArmor capability mediation definitions.
+ *
+ * Copyright (C) 1998-2008 Novell/SUSE
+ * Copyright 2009-2013 Canonical Ltd.
+ */
+
+#ifndef __AA_CAPABILITY_H
+#define __AA_CAPABILITY_H
+
+#include <linux/sched.h>
+
+#include "apparmorfs.h"
+
+struct aa_label;
+
+/* aa_caps - confinement data for capabilities
+ * @allowed: capabilities mask
+ * @audit: caps that are to be audited
+ * @denied: caps that are explicitly denied
+ * @quiet: caps that should not be audited
+ * @kill: caps that when requested will result in the task being killed
+ * @extended: caps that are subject finer grained mediation
+ */
+struct aa_caps {
+	kernel_cap_t allow;
+	kernel_cap_t audit;
+	kernel_cap_t denied;
+	kernel_cap_t quiet;
+	kernel_cap_t kill;
+	kernel_cap_t extended;
+};
+
+extern struct aa_sfs_entry aa_sfs_entry_caps[];
+
+kernel_cap_t aa_profile_capget(struct aa_profile *profile);
+int aa_capable(const struct cred *subj_cred, struct aa_label *label,
+	       int cap, unsigned int opts);
+
+static inline void aa_free_cap_rules(struct aa_caps *caps)
+{
+	/* NOP */
+}
+
+#endif /* __AA_CAPBILITY_H */
diff --git a/security/apparmor/include/cred.h b/security/apparmor/include/cred.h
new file mode 100644
index 000000000..2b6098149
--- /dev/null
+++ b/security/apparmor/include/cred.h
@@ -0,0 +1,250 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * AppArmor security module
+ *
+ * This file contains AppArmor contexts used to associate "labels" to objects.
+ *
+ * Copyright (C) 1998-2008 Novell/SUSE
+ * Copyright 2009-2010 Canonical Ltd.
+ */
+
+#ifndef __AA_CONTEXT_H
+#define __AA_CONTEXT_H
+
+#include <linux/cred.h>
+#include <linux/slab.h>
+#include <linux/sched.h>
+
+#include "label.h"
+#include "policy_ns.h"
+#include "task.h"
+
+static inline struct aa_label *cred_label(const struct cred *cred)
+{
+	struct aa_label **blob = cred->security + apparmor_blob_sizes.lbs_cred;
+
+	AA_BUG(!blob);
+	return *blob;
+}
+
+static inline void set_cred_label(const struct cred *cred,
+				  struct aa_label *label)
+{
+	struct aa_label **blob = cred->security + apparmor_blob_sizes.lbs_cred;
+
+	AA_BUG(!blob);
+	*blob = label;
+}
+
+/**
+ * aa_get_newest_cred_label - obtain the newest label on a cred
+ * @cred: cred to obtain label from (NOT NULL)
+ *
+ * Returns: newest version of confining label
+ */
+static inline struct aa_label *aa_get_newest_cred_label(const struct cred *cred)
+{
+	return aa_get_newest_label(cred_label(cred));
+}
+
+static inline struct aa_label *aa_get_newest_cred_label_condref(const struct cred *cred,
+								bool *needput)
+{
+	struct aa_label *l = cred_label(cred);
+
+	if (unlikely(label_is_stale(l))) {
+		*needput = true;
+		return aa_get_newest_label(l);
+	}
+
+	*needput = false;
+	return l;
+}
+
+static inline void aa_put_label_condref(struct aa_label *l, bool needput)
+{
+	if (unlikely(needput))
+		aa_put_label(l);
+}
+
+/**
+ * aa_current_raw_label - find the current tasks confining label
+ *
+ * Returns: up to date confining label or the ns unconfined label (NOT NULL)
+ *
+ * This fn will not update the tasks cred to the most up to date version
+ * of the label so it is safe to call when inside of locks.
+ */
+static inline struct aa_label *aa_current_raw_label(void)
+{
+	return cred_label(current_cred());
+}
+
+/**
+ * aa_get_current_label - get the newest version of the current tasks label
+ *
+ * Returns: newest version of confining label (NOT NULL)
+ *
+ * This fn will not update the tasks cred, so it is safe inside of locks
+ *
+ * The returned reference must be put with aa_put_label()
+ */
+static inline struct aa_label *aa_get_current_label(void)
+{
+	struct aa_label *l = aa_current_raw_label();
+
+	if (label_is_stale(l))
+		return aa_get_newest_label(l);
+	return aa_get_label(l);
+}
+
+/**
+ * __end_cred_crit_section - end crit section begun with __begin_...
+ * @label: label obtained from __begin_cred_crit_section
+ * @needput: output: bool set by __begin_cred_crit_section
+ *
+ * While the cred passed to __begin is guaranteed to not change
+ * and the cred and label could be passed here instead of needput
+ * using needput with a local var makes it easier for the compiler
+ * and processor to optimize and speculatively execute the comparison
+ * than chasing a pointer in the cred struct.
+ */
+static inline void __end_cred_crit_section(struct aa_label *label,
+						    bool needput)
+{
+	if (unlikely(needput))
+		aa_put_label(label);
+}
+
+/**
+ * __begin_cred_crit_section - @cred's confining label
+ * @cred: current's cred to start a crit section on its label
+ * @needput: store whether the label needs to be put when ending crit section
+ *
+ * Returns: up to date confining label or the ns unconfined label (NOT NULL)
+ *
+ * safe to call inside locks
+ *
+ * The returned reference must be put with __end_cred_crit_section()
+ * This must NOT be used if the task cred could be updated within the
+ * critical section between
+ *   __begin_cred_crit_section() ..  __end_cred_crit_section()
+ *
+ * The crit section is an optimization to avoid having to get and put
+ * the newest version of the label. While the cred won't change and
+ * hence the label it contains won't change, the newest version of the
+ * label can. During the crit section the newest versions of the label
+ * will be used until the end of the crit section.
+ *
+ * If the label has not been updated at the start of the crit section
+ * no refcount is taken, the cred's refcount is enough to hold the
+ * label for the duration of the crit section.
+ *
+ * If the label has been updated then a refcount will be taken and the
+ * newest version of the label will be returned. While the cred label
+ * and the returned label could be compared at the end of the crit
+ * section, needput is used because it allows better optimization by
+ * the compiler and the processor's speculative execution.
+ */
+static inline struct aa_label *__begin_cred_crit_section(const struct cred *cred,
+							 bool *needput)
+{
+	struct aa_label *label = cred_label(cred);
+
+	if (label_is_stale(label)) {
+		*needput = true;
+		return aa_get_newest_label(label);
+	}
+
+	*needput = false;
+	return label;
+}
+
+/**
+ * __end_current_label_crit_section - end crit section begun with __begin_...
+ * @label: label obtained from __begin_current_label_crit_section
+ * @needput: output: bool set by __begin_current_label_crit_section
+ *
+ * wrapper around __end_cred_crit_section() to pair nicely with
+ * __begin_current_label_crit_section()
+ */
+static inline void __end_current_label_crit_section(struct aa_label *label,
+						    bool needput)
+{
+	__end_cred_crit_section(label, needput);
+}
+
+/**
+ * end_current_label_crit_section - put a reference found with begin_current_label..
+ * @label: label reference to put
+ *
+ * Should only be used with a reference obtained with
+ * begin_current_label_crit_section and never used in situations where the
+ * task cred may be updated
+ */
+static inline void end_current_label_crit_section(struct aa_label *label)
+{
+	if (label != aa_current_raw_label())
+		aa_put_label(label);
+}
+
+/**
+ * __begin_current_label_crit_section - current's confining label
+ * @needput: store whether the label needs to be put when ending crit section
+ *
+ * Returns: up to date confining label or the ns unconfined label (NOT NULL)
+ *
+ * safe to call inside locks
+ *
+ * The returned reference must be put with __end_current_label_crit_section()
+ * This must NOT be used if the task cred could be updated within the
+ * critical section between __begin_current_label_crit_section() ..
+ * __end_current_label_crit_section()
+ */
+static inline struct aa_label *__begin_current_label_crit_section(bool *needput)
+{
+	return __begin_cred_crit_section(current_cred(), needput);
+}
+
+/**
+ * begin_current_label_crit_section - current's confining label and update it
+ *
+ * Returns: up to date confining label or the ns unconfined label (NOT NULL)
+ *
+ * Not safe to call inside locks
+ *
+ * The returned reference must be put with end_current_label_crit_section()
+ * This must NOT be used if the task cred could be updated within the
+ * critical section between begin_current_label_crit_section() ..
+ * end_current_label_crit_section()
+ */
+static inline struct aa_label *begin_current_label_crit_section(void)
+{
+	struct aa_label *label = aa_current_raw_label();
+
+	might_sleep();
+
+	if (label_is_stale(label)) {
+		label = aa_get_newest_label(label);
+		if (aa_replace_current_label(label) == 0)
+			/* task cred will keep the reference */
+			aa_put_label(label);
+	}
+
+	return label;
+}
+
+static inline struct aa_ns *aa_get_current_ns(void)
+{
+	struct aa_label *label;
+	struct aa_ns *ns;
+	bool needput;
+
+	label  = __begin_current_label_crit_section(&needput);
+	ns = aa_get_ns(labels_ns(label));
+	__end_current_label_crit_section(label, needput);
+
+	return ns;
+}
+
+#endif /* __AA_CONTEXT_H */
diff --git a/security/apparmor/include/crypto.h b/security/apparmor/include/crypto.h
new file mode 100644
index 000000000..f3ffd388c
--- /dev/null
+++ b/security/apparmor/include/crypto.h
@@ -0,0 +1,38 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * AppArmor security module
+ *
+ * This file contains AppArmor policy loading interface function definitions.
+ *
+ * Copyright 2013 Canonical Ltd.
+ */
+
+#ifndef __APPARMOR_CRYPTO_H
+#define __APPARMOR_CRYPTO_H
+
+#include "policy.h"
+
+#ifdef CONFIG_SECURITY_APPARMOR_HASH
+int init_profile_hash(void);
+unsigned int aa_hash_size(void);
+char *aa_calc_hash(void *data, size_t len);
+int aa_calc_profile_hash(struct aa_profile *profile, u32 version, void *start,
+			 size_t len);
+#else
+static inline char *aa_calc_hash(void *data, size_t len)
+{
+	return NULL;
+}
+static inline int aa_calc_profile_hash(struct aa_profile *profile, u32 version,
+				       void *start, size_t len)
+{
+	return 0;
+}
+
+static inline unsigned int aa_hash_size(void)
+{
+	return 0;
+}
+#endif
+
+#endif /* __APPARMOR_CRYPTO_H */
diff --git a/security/apparmor/include/domain.h b/security/apparmor/include/domain.h
new file mode 100644
index 000000000..77f9a0ed0
--- /dev/null
+++ b/security/apparmor/include/domain.h
@@ -0,0 +1,33 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * AppArmor security module
+ *
+ * This file contains AppArmor security domain transition function definitions.
+ *
+ * Copyright (C) 1998-2008 Novell/SUSE
+ * Copyright 2009-2010 Canonical Ltd.
+ */
+
+#include <linux/binfmts.h>
+#include <linux/types.h>
+
+#include "label.h"
+
+#ifndef __AA_DOMAIN_H
+#define __AA_DOMAIN_H
+
+#define AA_CHANGE_NOFLAGS 0
+#define AA_CHANGE_TEST 1
+#define AA_CHANGE_CHILD 2
+#define AA_CHANGE_ONEXEC  4
+#define AA_CHANGE_STACK 8
+
+struct aa_label *x_table_lookup(struct aa_profile *profile, u32 xindex,
+				const char **name);
+
+int apparmor_bprm_creds_for_exec(struct linux_binprm *bprm);
+
+int aa_change_hat(const char *hats[], int count, u64 token, int flags);
+int aa_change_profile(const char *fqname, int flags);
+
+#endif /* __AA_DOMAIN_H */
diff --git a/security/apparmor/include/file.h b/security/apparmor/include/file.h
new file mode 100644
index 000000000..ef60f99bc
--- /dev/null
+++ b/security/apparmor/include/file.h
@@ -0,0 +1,133 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * AppArmor security module
+ *
+ * This file contains AppArmor file mediation function definitions.
+ *
+ * Copyright (C) 1998-2008 Novell/SUSE
+ * Copyright 2009-2010 Canonical Ltd.
+ */
+
+#ifndef __AA_FILE_H
+#define __AA_FILE_H
+
+#include <linux/spinlock.h>
+
+#include "domain.h"
+#include "match.h"
+#include "perms.h"
+
+struct aa_policydb;
+struct aa_profile;
+struct path;
+
+#define mask_mode_t(X) (X & (MAY_EXEC | MAY_WRITE | MAY_READ | MAY_APPEND))
+
+#define AA_AUDIT_FILE_MASK	(MAY_READ | MAY_WRITE | MAY_EXEC | MAY_APPEND |\
+				 AA_MAY_CREATE | AA_MAY_DELETE |	\
+				 AA_MAY_GETATTR | AA_MAY_SETATTR | \
+				 AA_MAY_CHMOD | AA_MAY_CHOWN | AA_MAY_LOCK | \
+				 AA_EXEC_MMAP | AA_MAY_LINK)
+
+static inline struct aa_file_ctx *file_ctx(struct file *file)
+{
+	return file->f_security + apparmor_blob_sizes.lbs_file;
+}
+
+/* struct aa_file_ctx - the AppArmor context the file was opened in
+ * @lock: lock to update the ctx
+ * @label: label currently cached on the ctx
+ * @perms: the permission the file was opened with
+ */
+struct aa_file_ctx {
+	spinlock_t lock;
+	struct aa_label __rcu *label;
+	u32 allow;
+};
+
+/*
+ * The xindex is broken into 3 parts
+ * - index - an index into either the exec name table or the variable table
+ * - exec type - which determines how the executable name and index are used
+ * - flags - which modify how the destination name is applied
+ */
+#define AA_X_INDEX_MASK		AA_INDEX_MASK
+
+#define AA_X_TYPE_MASK		0x0c000000
+#define AA_X_NONE		AA_INDEX_NONE
+#define AA_X_NAME		0x04000000 /* use executable name px */
+#define AA_X_TABLE		0x08000000 /* use a specified name ->n# */
+
+#define AA_X_UNSAFE		0x10000000
+#define AA_X_CHILD		0x20000000
+#define AA_X_INHERIT		0x40000000
+#define AA_X_UNCONFINED		0x80000000
+
+/* need to make conditional which ones are being set */
+struct path_cond {
+	kuid_t uid;
+	umode_t mode;
+};
+
+#define COMBINED_PERM_MASK(X) ((X).allow | (X).audit | (X).quiet | (X).kill)
+
+int aa_audit_file(const struct cred *cred,
+		  struct aa_profile *profile, struct aa_perms *perms,
+		  const char *op, u32 request, const char *name,
+		  const char *target, struct aa_label *tlabel, kuid_t ouid,
+		  const char *info, int error);
+
+struct aa_perms *aa_lookup_condperms(kuid_t subj_uid,
+				     struct aa_policydb *file_rules,
+				     aa_state_t state, struct path_cond *cond);
+aa_state_t aa_str_perms(struct aa_policydb *file_rules, aa_state_t start,
+			const char *name, struct path_cond *cond,
+			struct aa_perms *perms);
+
+int __aa_path_perm(const char *op, const struct cred *subj_cred,
+		   struct aa_profile *profile, const char *name,
+		   u32 request, struct path_cond *cond, int flags,
+		   struct aa_perms *perms);
+int aa_path_perm(const char *op, const struct cred *subj_cred,
+		 struct aa_label *label, const struct path *path,
+		 int flags, u32 request, struct path_cond *cond);
+
+int aa_path_link(const struct cred *subj_cred, struct aa_label *label,
+		 struct dentry *old_dentry, const struct path *new_dir,
+		 struct dentry *new_dentry);
+
+int aa_file_perm(const char *op, const struct cred *subj_cred,
+		 struct aa_label *label, struct file *file,
+		 u32 request, bool in_atomic);
+
+void aa_inherit_files(const struct cred *cred, struct files_struct *files);
+
+
+/**
+ * aa_map_file_to_perms - map file flags to AppArmor permissions
+ * @file: open file to map flags to AppArmor permissions
+ *
+ * Returns: apparmor permission set for the file
+ */
+static inline u32 aa_map_file_to_perms(struct file *file)
+{
+	int flags = file->f_flags;
+	u32 perms = 0;
+
+	if (file->f_mode & FMODE_WRITE)
+		perms |= MAY_WRITE;
+	if (file->f_mode & FMODE_READ)
+		perms |= MAY_READ;
+
+	if ((flags & O_APPEND) && (perms & MAY_WRITE))
+		perms = (perms & ~MAY_WRITE) | MAY_APPEND;
+	/* trunc implies write permission */
+	if (flags & O_TRUNC)
+		perms |= MAY_WRITE;
+	if (flags & O_CREAT)
+		perms |= AA_MAY_CREATE;
+
+	return perms;
+}
+
+#endif /* __AA_FILE_H */
diff --git a/security/apparmor/include/ipc.h b/security/apparmor/include/ipc.h
new file mode 100644
index 000000000..323dd071a
--- /dev/null
+++ b/security/apparmor/include/ipc.h
@@ -0,0 +1,23 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * AppArmor security module
+ *
+ * This file contains AppArmor ipc mediation function definitions.
+ *
+ * Copyright (C) 1998-2008 Novell/SUSE
+ * Copyright 2009-2017 Canonical Ltd.
+ */
+
+#ifndef __AA_IPC_H
+#define __AA_IPC_H
+
+#include <linux/sched.h>
+
+#define SIGUNKNOWN 0
+#define MAXMAPPED_SIG 35
+
+int aa_may_signal(const struct cred *subj_cred, struct aa_label *sender,
+		  const struct cred *target_cred, struct aa_label *target,
+		  int sig);
+
+#endif /* __AA_IPC_H */
diff --git a/security/apparmor/include/label.h b/security/apparmor/include/label.h
new file mode 100644
index 000000000..b5a722a47
--- /dev/null
+++ b/security/apparmor/include/label.h
@@ -0,0 +1,491 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * AppArmor security module
+ *
+ * This file contains AppArmor label definitions
+ *
+ * Copyright 2017 Canonical Ltd.
+ */
+
+#ifndef __AA_LABEL_H
+#define __AA_LABEL_H
+
+#include <linux/atomic.h>
+#include <linux/audit.h>
+#include <linux/rbtree.h>
+#include <linux/rcupdate.h>
+
+#include "apparmor.h"
+#include "lib.h"
+
+struct aa_ns;
+struct aa_ruleset;
+
+#define LOCAL_VEC_ENTRIES 8
+#define DEFINE_VEC(T, V)						\
+	struct aa_ ## T *(_ ## V ## _localtmp)[LOCAL_VEC_ENTRIES];	\
+	struct aa_ ## T **(V)
+
+#define vec_setup(T, V, N, GFP)						\
+({									\
+	if ((N) <= LOCAL_VEC_ENTRIES) {					\
+		typeof(N) i;						\
+		(V) = (_ ## V ## _localtmp);				\
+		for (i = 0; i < (N); i++)				\
+			(V)[i] = NULL;					\
+	} else								\
+		(V) = kzalloc(sizeof(struct aa_ ## T *) * (N), (GFP));	\
+	(V) ? 0 : -ENOMEM;						\
+})
+
+#define vec_cleanup(T, V, N)						\
+do {									\
+	int i;								\
+	for (i = 0; i < (N); i++) {					\
+		if (!IS_ERR_OR_NULL((V)[i]))				\
+			aa_put_ ## T((V)[i]);				\
+	}								\
+	if ((V) != _ ## V ## _localtmp)					\
+		kfree(V);						\
+} while (0)
+
+#define vec_last(VEC, SIZE) ((VEC)[(SIZE) - 1])
+#define vec_ns(VEC, SIZE) (vec_last((VEC), (SIZE))->ns)
+#define vec_labelset(VEC, SIZE) (&vec_ns((VEC), (SIZE))->labels)
+#define cleanup_domain_vec(V, L) cleanup_label_vec((V), (L)->size)
+
+struct aa_profile;
+#define VEC_FLAG_TERMINATE 1
+int aa_vec_unique(struct aa_profile **vec, int n, int flags);
+struct aa_label *aa_vec_find_or_create_label(struct aa_profile **vec, int len,
+					     gfp_t gfp);
+#define aa_sort_and_merge_vec(N, V) \
+	aa_sort_and_merge_profiles((N), (struct aa_profile **)(V))
+
+
+/* struct aa_labelset - set of labels for a namespace
+ *
+ * Labels are reference counted; aa_labelset does not contribute to label
+ * reference counts. Once a label's last refcount is put it is removed from
+ * the set.
+ */
+struct aa_labelset {
+	rwlock_t lock;
+
+	struct rb_root root;
+};
+
+#define __labelset_for_each(LS, N) \
+	for ((N) = rb_first(&(LS)->root); (N); (N) = rb_next(N))
+
+enum label_flags {
+	FLAG_HAT = 1,			/* profile is a hat */
+	FLAG_UNCONFINED = 2,		/* label unconfined only if all */
+	FLAG_NULL = 4,			/* profile is null learning profile */
+	FLAG_IX_ON_NAME_ERROR = 8,	/* fallback to ix on name lookup fail */
+	FLAG_IMMUTIBLE = 0x10,		/* don't allow changes/replacement */
+	FLAG_USER_DEFINED = 0x20,	/* user based profile - lower privs */
+	FLAG_NO_LIST_REF = 0x40,	/* list doesn't keep profile ref */
+	FLAG_NS_COUNT = 0x80,		/* carries NS ref count */
+	FLAG_IN_TREE = 0x100,		/* label is in tree */
+	FLAG_PROFILE = 0x200,		/* label is a profile */
+	FLAG_EXPLICIT = 0x400,		/* explicit static label */
+	FLAG_STALE = 0x800,		/* replaced/removed */
+	FLAG_RENAMED = 0x1000,		/* label has renaming in it */
+	FLAG_REVOKED = 0x2000,		/* label has revocation in it */
+	FLAG_DEBUG1 = 0x4000,
+	FLAG_DEBUG2 = 0x8000,
+
+	/* These flags must correspond with PATH_flags */
+	/* TODO: add new path flags */
+};
+
+struct aa_label;
+struct aa_proxy {
+	struct aa_common_ref count;
+	struct aa_label __rcu *label;
+};
+
+struct label_it {
+	int i, j;
+};
+
+/* struct aa_label_base - base info of label
+ * @count: ref count of active users
+ * @node: rbtree position
+ * @rcu: rcu callback struct
+ * @proxy: is set to the label that replaced this label
+ * @hname: text representation of the label (MAYBE_NULL)
+ * @flags: stale and other flags - values may change under label set lock
+ * @secid: secid that references this label
+ * @size: number of entries in @ent[]
+ * @mediates: bitmask for label_mediates
+ * profile: label vec when embedded in a profile FLAG_PROFILE is set
+ * rules: variable length rules in a profile FLAG_PROFILE is set
+ * vec: vector of profiles comprising the compound label
+ */
+struct aa_label {
+	struct aa_common_ref count;
+	struct rb_node node;
+	struct rcu_head rcu;
+	struct aa_proxy *proxy;
+	__counted char *hname;
+	long flags;
+	u32 secid;
+	int size;
+	u64 mediates;
+	union {
+		struct {
+			/* only used is the label is a profile, size of
+			 * rules[] is determined by the profile
+			 * profile[1] is poison or null as guard
+			 */
+			struct aa_profile *profile[2];
+			DECLARE_FLEX_ARRAY(struct aa_ruleset *, rules);
+		};
+		DECLARE_FLEX_ARRAY(struct aa_profile *, vec);
+	};
+};
+
+#define last_error(E, FN)				\
+do {							\
+	int __subE = (FN);				\
+	if (__subE)					\
+		(E) = __subE;				\
+} while (0)
+
+#define label_isprofile(X) ((X)->flags & FLAG_PROFILE)
+#define label_unconfined(X) ((X)->flags & FLAG_UNCONFINED)
+#define unconfined(X) label_unconfined(X)
+#define label_is_stale(X) ((X)->flags & FLAG_STALE)
+#define __label_make_stale(X) ((X)->flags |= FLAG_STALE)
+#define labels_ns(X) (vec_ns(&((X)->vec[0]), (X)->size))
+#define labels_set(X) (&labels_ns(X)->labels)
+#define labels_view(X) labels_ns(X)
+#define labels_profile(X) ((X)->vec[(X)->size - 1])
+
+
+int aa_label_next_confined(struct aa_label *l, int i);
+
+/* for each profile in a label */
+#define label_for_each(I, L, P)						\
+	for ((I).i = 0; ((P) = (L)->vec[(I).i]); ++((I).i))
+
+/* assumes break/goto ended label_for_each */
+#define label_for_each_cont(I, L, P)					\
+	for (++((I).i); ((P) = (L)->vec[(I).i]); ++((I).i))
+
+
+
+/* for each profile that is enforcing confinement in a label */
+#define label_for_each_confined(I, L, P)				\
+	for ((I).i = aa_label_next_confined((L), 0);			\
+	     ((P) = (L)->vec[(I).i]);					\
+	     (I).i = aa_label_next_confined((L), (I).i + 1))
+
+#define label_for_each_in_merge(I, A, B, P)				\
+	for ((I).i = (I).j = 0;						\
+	     ((P) = aa_label_next_in_merge(&(I), (A), (B)));		\
+	     )
+
+#define label_for_each_not_in_set(I, SET, SUB, P)			\
+	for ((I).i = (I).j = 0;						\
+	     ((P) = __aa_label_next_not_in_set(&(I), (SET), (SUB)));	\
+	     )
+
+#define next_in_ns(i, NS, L)						\
+({									\
+	typeof(i) ___i = (i);						\
+	while ((L)->vec[___i] && (L)->vec[___i]->ns != (NS))		\
+		(___i)++;						\
+	(___i);								\
+})
+
+#define label_for_each_in_ns(I, NS, L, P)				\
+	for ((I).i = next_in_ns(0, (NS), (L));				\
+	     ((P) = (L)->vec[(I).i]);					\
+	     (I).i = next_in_ns((I).i + 1, (NS), (L)))
+
+#define fn_for_each_in_ns(L, P, FN)					\
+({									\
+	struct label_it __i;						\
+	struct aa_ns *__ns = labels_ns(L);				\
+	int __E = 0;							\
+	label_for_each_in_ns(__i, __ns, (L), (P)) {			\
+		last_error(__E, (FN));					\
+	}								\
+	__E;								\
+})
+
+
+#define fn_for_each_XXX(L, P, FN, ...)					\
+({									\
+	struct label_it i;						\
+	int __E = 0;							\
+	label_for_each ## __VA_ARGS__(i, (L), (P)) {			\
+		last_error(__E, (FN));					\
+	}								\
+	__E;								\
+})
+
+#define fn_for_each(L, P, FN) fn_for_each_XXX(L, P, FN)
+#define fn_for_each_confined(L, P, FN) fn_for_each_XXX(L, P, FN, _confined)
+
+#define fn_for_each2_XXX(L1, L2, P, FN, ...)				\
+({									\
+	struct label_it i;						\
+	int __E = 0;							\
+	label_for_each ## __VA_ARGS__(i, (L1), (L2), (P)) {		\
+		last_error(__E, (FN));					\
+	}								\
+	__E;								\
+})
+
+#define fn_for_each_in_merge(L1, L2, P, FN)				\
+	fn_for_each2_XXX((L1), (L2), P, FN, _in_merge)
+#define fn_for_each_not_in_set(L1, L2, P, FN)				\
+	fn_for_each2_XXX((L1), (L2), P, FN, _not_in_set)
+
+static inline bool label_mediates(struct aa_label *L, unsigned char C)
+{
+	return (L)->mediates & (((u64) 1) << (C));
+}
+
+static inline bool label_mediates_safe(struct aa_label *L, unsigned char C)
+{
+	if (C > AA_CLASS_LAST)
+		return false;
+	return label_mediates(L, C);
+}
+
+void aa_labelset_destroy(struct aa_labelset *ls);
+void aa_labelset_init(struct aa_labelset *ls);
+void __aa_labelset_update_subtree(struct aa_ns *ns);
+
+void aa_label_destroy(struct aa_label *label);
+void aa_label_free(struct aa_label *label);
+void aa_label_kref(struct kref *kref);
+bool aa_label_init(struct aa_label *label, int size, gfp_t gfp);
+struct aa_label *aa_label_alloc(int size, struct aa_proxy *proxy, gfp_t gfp);
+
+bool aa_label_is_subset(struct aa_label *set, struct aa_label *sub);
+bool aa_label_is_unconfined_subset(struct aa_label *set, struct aa_label *sub);
+struct aa_profile *__aa_label_next_not_in_set(struct label_it *I,
+					     struct aa_label *set,
+					     struct aa_label *sub);
+bool aa_label_remove(struct aa_label *label);
+struct aa_label *aa_label_insert(struct aa_labelset *ls, struct aa_label *l);
+bool aa_label_replace(struct aa_label *old, struct aa_label *new);
+bool aa_label_make_newest(struct aa_labelset *ls, struct aa_label *old,
+			  struct aa_label *new);
+
+struct aa_profile *aa_label_next_in_merge(struct label_it *I,
+					  struct aa_label *a,
+					  struct aa_label *b);
+struct aa_label *aa_label_find_merge(struct aa_label *a, struct aa_label *b);
+struct aa_label *aa_label_merge(struct aa_label *a, struct aa_label *b,
+				gfp_t gfp);
+
+
+bool aa_update_label_name(struct aa_ns *ns, struct aa_label *label, gfp_t gfp);
+
+#define FLAGS_NONE 0
+#define FLAG_SHOW_MODE 1
+#define FLAG_VIEW_SUBNS 2
+#define FLAG_HIDDEN_UNCONFINED 4
+#define FLAG_ABS_ROOT 8
+int aa_label_snxprint(char *str, size_t size, struct aa_ns *view,
+		      struct aa_label *label, int flags);
+int aa_label_asxprint(char **strp, struct aa_ns *ns, struct aa_label *label,
+		      int flags, gfp_t gfp);
+int aa_label_acntsxprint(char __counted **strp, struct aa_ns *ns,
+			 struct aa_label *label, int flags, gfp_t gfp);
+void aa_label_xaudit(struct audit_buffer *ab, struct aa_ns *ns,
+		     struct aa_label *label, int flags, gfp_t gfp);
+void aa_label_seq_xprint(struct seq_file *f, struct aa_ns *ns,
+			 struct aa_label *label, int flags, gfp_t gfp);
+void aa_label_xprintk(struct aa_ns *ns, struct aa_label *label, int flags,
+		      gfp_t gfp);
+void aa_label_printk(struct aa_label *label, gfp_t gfp);
+
+struct aa_label *aa_label_strn_parse(struct aa_label *base, const char *str,
+				     size_t n, gfp_t gfp, bool create,
+				     bool force_stack);
+struct aa_label *aa_label_parse(struct aa_label *base, const char *str,
+				gfp_t gfp, bool create, bool force_stack);
+
+static inline const char *aa_label_strn_split(const char *str, int n)
+{
+	const char *pos;
+	aa_state_t state;
+
+	state = aa_dfa_matchn_until(stacksplitdfa, DFA_START, str, n, &pos);
+	if (!ACCEPT_TABLE(stacksplitdfa)[state])
+		return NULL;
+
+	return pos - 3;
+}
+
+static inline const char *aa_label_str_split(const char *str)
+{
+	const char *pos;
+	aa_state_t state;
+
+	state = aa_dfa_match_until(stacksplitdfa, DFA_START, str, &pos);
+	if (!ACCEPT_TABLE(stacksplitdfa)[state])
+		return NULL;
+
+	return pos - 3;
+}
+
+
+
+struct aa_perms;
+struct aa_ruleset;
+int aa_label_match(struct aa_profile *profile, struct aa_ruleset *rules,
+		   struct aa_label *label, aa_state_t state, bool subns,
+		   u32 request, struct aa_perms *perms);
+
+
+/**
+ * __aa_get_label - get a reference count to uncounted label reference
+ * @l: reference to get a count on
+ *
+ * Returns: pointer to reference OR NULL if race is lost and reference is
+ *          being repeated.
+ * Requires: lock held, and the return code MUST be checked
+ */
+static inline struct aa_label *__aa_get_label(struct aa_label *l)
+{
+	if (l && kref_get_unless_zero(&l->count.count))
+		return l;
+
+	return NULL;
+}
+
+static inline struct aa_label *aa_get_label(struct aa_label *l)
+{
+	if (l)
+		kref_get(&(l->count.count));
+
+	return l;
+}
+
+
+/**
+ * aa_get_label_rcu - increment refcount on a label that can be replaced
+ * @l: pointer to label that can be replaced (NOT NULL)
+ *
+ * Returns: pointer to a refcounted label.
+ *     else NULL if no label
+ */
+static inline struct aa_label *aa_get_label_rcu(struct aa_label __rcu **l)
+{
+	struct aa_label *c;
+
+	rcu_read_lock();
+	do {
+		c = rcu_dereference(*l);
+	} while (c && !kref_get_unless_zero(&c->count.count));
+	rcu_read_unlock();
+
+	return c;
+}
+
+/**
+ * aa_get_newest_label - find the newest version of @l
+ * @l: the label to check for newer versions of
+ *
+ * Returns: refcounted newest version of @l taking into account
+ *          replacement, renames and removals
+ *          return @l.
+ */
+static inline struct aa_label *aa_get_newest_label(struct aa_label *l)
+{
+	if (!l)
+		return NULL;
+
+	if (label_is_stale(l)) {
+		struct aa_label *tmp;
+
+		AA_BUG(!l->proxy);
+		AA_BUG(!l->proxy->label);
+		/* BUG: only way this can happen is @l ref count and its
+		 * replacement count have gone to 0 and are on their way
+		 * to destruction. ie. we have a refcounting error
+		 */
+		tmp = aa_get_label_rcu(&l->proxy->label);
+		AA_BUG(!tmp);
+
+		return tmp;
+	}
+
+	return aa_get_label(l);
+}
+
+/**
+ * aa_get_newest_label_condref - find the newest version of @l
+ * @l: the label to check for newer versions of
+ * @needput: returns whether the reference needs put
+ *
+ * Returns: refcounted newest version of @l taking into account
+ *          replacement, renames and removals
+ *          return @l.
+ */
+static inline struct aa_label *aa_get_newest_label_condref(struct aa_label *l,
+							   bool *needput)
+{
+	if (l && unlikely(label_is_stale(l))) {
+		struct aa_label *tmp;
+
+		AA_BUG(!l->proxy);
+		AA_BUG(!l->proxy->label);
+		/* BUG: only way this can happen is @l ref count and its
+		 * replacement count have gone to 0 and are on their way
+		 * to destruction. ie. we have a refcounting error
+		 */
+		tmp = aa_get_label_rcu(&l->proxy->label);
+		AA_BUG(!tmp);
+
+		*needput = true;
+		return tmp;
+	}
+
+	*needput = false;
+	return l;
+}
+
+static inline void aa_put_label(struct aa_label *l)
+{
+	if (l)
+		kref_put(&l->count.count, aa_label_kref);
+}
+
+/* wrapper fn to indicate semantics of the check */
+static inline bool __aa_subj_label_is_cached(struct aa_label *subj_label,
+					  struct aa_label *obj_label)
+{
+	return aa_label_is_subset(obj_label, subj_label);
+}
+
+
+struct aa_proxy *aa_alloc_proxy(struct aa_label *l, gfp_t gfp);
+void aa_proxy_kref(struct kref *kref);
+
+static inline struct aa_proxy *aa_get_proxy(struct aa_proxy *proxy)
+{
+	if (proxy)
+		kref_get(&(proxy->count.count));
+
+	return proxy;
+}
+
+static inline void aa_put_proxy(struct aa_proxy *proxy)
+{
+	if (proxy)
+		kref_put(&proxy->count.count, aa_proxy_kref);
+}
+
+void __aa_proxy_redirect(struct aa_label *orig, struct aa_label *new);
+
+#endif /* __AA_LABEL_H */
diff --git a/security/apparmor/include/lib.h b/security/apparmor/include/lib.h
new file mode 100644
index 000000000..e3c8cb044
--- /dev/null
+++ b/security/apparmor/include/lib.h
@@ -0,0 +1,363 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * AppArmor security module
+ *
+ * This file contains AppArmor lib definitions
+ *
+ * 2017 Canonical Ltd.
+ */
+
+#ifndef __AA_LIB_H
+#define __AA_LIB_H
+
+#include <linux/slab.h>
+#include <linux/fs.h>
+#include <linux/lsm_hooks.h>
+
+#include "match.h"
+
+extern struct aa_dfa *stacksplitdfa;
+
+/*
+ * split individual debug cases out in preparation for finer grained
+ * debug controls in the future.
+ */
+#define dbg_printk(__fmt, __args...) pr_debug(__fmt, ##__args)
+
+#define DEBUG_NONE 0
+#define DEBUG_LABEL_ABS_ROOT 1
+#define DEBUG_LABEL 2
+#define DEBUG_DOMAIN 4
+#define DEBUG_POLICY 8
+#define DEBUG_INTERFACE 0x10
+#define DEBUG_UNPACK 0x20
+#define DEBUG_TAGS 0x40
+
+#define DEBUG_ALL 0x7f		/* update if new DEBUG_X added */
+#define DEBUG_PARSE_ERROR (-1)
+
+#define DEBUG_ON (aa_g_debug != DEBUG_NONE)
+#define DEBUG_ABS_ROOT (aa_g_debug & DEBUG_LABEL_ABS_ROOT)
+
+#define AA_DEBUG(opt, fmt, args...)					\
+	do {								\
+		if (aa_g_debug & opt)					\
+			pr_warn_ratelimited("%s: " fmt, __func__, ##args); \
+	} while (0)
+#define AA_DEBUG_LABEL(LAB, X, fmt, args...)				\
+do {									\
+	if ((LAB)->flags & FLAG_DEBUG1)					\
+		AA_DEBUG(X, fmt, ##args);				\
+} while (0)
+
+#define AA_DEBUG_PROFILE(PROF, X, fmt...) AA_DEBUG_LABEL(&(PROF)->label, X, ##fmt)
+
+#define AA_WARN(X) WARN((X), "APPARMOR WARN %s: %s\n", __func__, #X)
+
+#define AA_BUG(X, args...)						    \
+	do {								    \
+		_Pragma("GCC diagnostic ignored \"-Wformat-zero-length\""); \
+		AA_BUG_FMT((X), "" args);				    \
+		_Pragma("GCC diagnostic warning \"-Wformat-zero-length\""); \
+	} while (0)
+#ifdef CONFIG_SECURITY_APPARMOR_DEBUG_ASSERTS
+#define AA_BUG_FMT(X, fmt, args...)					\
+	WARN((X), "AppArmor WARN %s: (" #X "): " fmt, __func__, ##args)
+#else
+#define AA_BUG_FMT(X, fmt, args...)					\
+	do {								\
+		BUILD_BUG_ON_INVALID(X);				\
+		no_printk(fmt, ##args);					\
+	} while (0)
+#endif
+
+int aa_parse_debug_params(const char *str);
+int aa_print_debug_params(char *buffer);
+
+#define AA_ERROR(fmt, args...)						\
+	pr_err_ratelimited("AppArmor: " fmt, ##args)
+
+/* Flag indicating whether initialization completed */
+extern int apparmor_initialized;
+
+/* semantic split of scope and view */
+#define aa_in_scope(SUBJ, OBJ)						\
+	aa_ns_visible(SUBJ, OBJ, false)
+
+#define aa_in_view(SUBJ, OBJ)						\
+	aa_ns_visible(SUBJ, OBJ, true)
+
+#define label_for_each_in_scope(I, NS, L, P)				\
+	label_for_each_in_ns(I, NS, L, P)
+
+#define fn_for_each_in_scope(L, P, FN)					\
+	fn_for_each_in_ns(L, P, FN)
+
+/* fn's in lib */
+const char *skipn_spaces(const char *str, size_t n);
+const char *aa_splitn_fqname(const char *fqname, size_t n, const char **ns_name,
+			     size_t *ns_len);
+void aa_info_message(const char *str);
+
+/* Security blob offsets */
+extern struct lsm_blob_sizes apparmor_blob_sizes;
+
+enum reftype {
+	REF_NS,
+	REF_PROXY,
+	REF_RAWDATA,
+};
+
+/* common reference count used by data the shows up in aafs */
+struct aa_common_ref {
+	struct kref count;
+	enum reftype reftype;
+};
+
+/**
+ * aa_strneq - compare null terminated @str to a non null terminated substring
+ * @str: a null terminated string
+ * @sub: a substring, not necessarily null terminated
+ * @len: length of @sub to compare
+ *
+ * The @str string must be full consumed for this to be considered a match
+ */
+static inline bool aa_strneq(const char *str, const char *sub, int len)
+{
+	return !strncmp(str, sub, len) && !str[len];
+}
+
+/**
+ * aa_dfa_null_transition - step to next state after null character
+ * @dfa: the dfa to match against
+ * @start: the state of the dfa to start matching in
+ *
+ * aa_dfa_null_transition transitions to the next state after a null
+ * character which is not used in standard matching and is only
+ * used to separate pairs.
+ */
+static inline aa_state_t aa_dfa_null_transition(struct aa_dfa *dfa,
+						aa_state_t start)
+{
+	/* the null transition only needs the string's null terminator byte */
+	return aa_dfa_next(dfa, start, 0);
+}
+
+static inline bool path_mediated_fs(struct dentry *dentry)
+{
+	return !(dentry->d_sb->s_flags & SB_NOUSER);
+}
+
+struct aa_str_table_ent {
+	int count;
+	int size;
+	char *strs;
+};
+
+struct aa_str_table {
+	int size;
+	struct aa_str_table_ent *table;
+};
+
+bool aa_resize_str_table(struct aa_str_table *t, int newsize, gfp_t gfp);
+void aa_destroy_str_table(struct aa_str_table *table);
+
+struct counted_str {
+	struct kref count;
+	char name[];
+};
+
+#define str_to_counted(str) \
+	((struct counted_str *)(str - offsetof(struct counted_str, name)))
+
+#define __counted	/* atm just a notation */
+
+void aa_str_kref(struct kref *kref);
+char *aa_str_alloc(int size, gfp_t gfp);
+
+
+static inline __counted char *aa_get_str(__counted char *str)
+{
+	if (str)
+		kref_get(&(str_to_counted(str)->count));
+
+	return str;
+}
+
+static inline void aa_put_str(__counted char *str)
+{
+	if (str)
+		kref_put(&str_to_counted(str)->count, aa_str_kref);
+}
+
+
+/* struct aa_policy - common part of both namespaces and profiles
+ * @name: name of the object
+ * @hname - The hierarchical name
+ * @list: list policy object is on
+ * @profiles: head of the profiles list contained in the object
+ */
+struct aa_policy {
+	const char *name;
+	__counted char *hname;
+	struct list_head list;
+	struct list_head profiles;
+};
+
+/**
+ * basename - find the last component of an hname
+ * @hname: hname to find the base profile name component of  (NOT NULL)
+ *
+ * Returns: the tail (base profile name) name component of an hname
+ */
+static inline const char *basename(const char *hname)
+{
+	char *split;
+
+	hname = strim((char *)hname);
+	for (split = strstr(hname, "//"); split; split = strstr(hname, "//"))
+		hname = split + 2;
+
+	return hname;
+}
+
+/**
+ * __policy_find - find a policy by @name on a policy list
+ * @head: list to search  (NOT NULL)
+ * @name: name to search for  (NOT NULL)
+ *
+ * Requires: rcu_read_lock be held
+ *
+ * Returns: unrefcounted policy that match @name or NULL if not found
+ */
+static inline struct aa_policy *__policy_find(struct list_head *head,
+					      const char *name)
+{
+	struct aa_policy *policy;
+
+	list_for_each_entry_rcu(policy, head, list) {
+		if (!strcmp(policy->name, name))
+			return policy;
+	}
+	return NULL;
+}
+
+/**
+ * __policy_strn_find - find a policy that's name matches @len chars of @str
+ * @head: list to search  (NOT NULL)
+ * @str: string to search for  (NOT NULL)
+ * @len: length of match required
+ *
+ * Requires: rcu_read_lock be held
+ *
+ * Returns: unrefcounted policy that match @str or NULL if not found
+ *
+ * if @len == strlen(@strlen) then this is equiv to __policy_find
+ * other wise it allows searching for policy by a partial match of name
+ */
+static inline struct aa_policy *__policy_strn_find(struct list_head *head,
+					    const char *str, int len)
+{
+	struct aa_policy *policy;
+
+	list_for_each_entry_rcu(policy, head, list) {
+		if (aa_strneq(policy->name, str, len))
+			return policy;
+	}
+
+	return NULL;
+}
+
+bool aa_policy_init(struct aa_policy *policy, const char *prefix,
+		    const char *name, gfp_t gfp);
+void aa_policy_destroy(struct aa_policy *policy);
+
+
+/*
+ * fn_label_build - abstract out the build of a label transition
+ * @L: label the transition is being computed for
+ * @P: profile parameter derived from L by this macro, can be passed to FN
+ * @GFP: memory allocation type to use
+ * @FN: fn to call for each profile transition. @P is set to the profile
+ *
+ * Returns: new label on success
+ *	    NULL if all callbacks decline to specify a transition
+ *          ERR_PTR if build @FN fails
+ *
+ * @FN must return a label or ERR_PTR on failure.
+ */
+#define fn_label_build(L, P, GFP, FN)					\
+({									\
+	__label__ __do_cleanup, __done;					\
+	struct aa_label *__new_ = NULL;					\
+									\
+	if ((L)->size > 1) {						\
+		/* TODO: add cache of transitions already done */	\
+		struct label_it __i;					\
+		int __j, __k, __count;					\
+		DEFINE_VEC(label, __lvec);				\
+		DEFINE_VEC(profile, __pvec);				\
+		if (vec_setup(label, __lvec, (L)->size, (GFP)))	{	\
+			__new_ = ERR_PTR(-ENOMEM);			\
+			goto __done;					\
+		}							\
+		__j = 0;						\
+		label_for_each(__i, (L), (P)) {				\
+			__new_ = (FN);					\
+			if (!__new_)					\
+				continue;				\
+			if (IS_ERR(__new_))				\
+				goto __do_cleanup;			\
+			__lvec[__j++] = __new_;				\
+		}							\
+		if (__j == 0)						\
+			/* no components adding to build */		\
+			goto __do_cleanup;				\
+		for (__j = __count = 0; __j < (L)->size; __j++)		\
+			__count += __lvec[__j]->size;			\
+		if (!vec_setup(profile, __pvec, __count, (GFP))) {	\
+			for (__j = __k = 0; __j < (L)->size; __j++) {	\
+				label_for_each(__i, __lvec[__j], (P))	\
+					__pvec[__k++] = aa_get_profile(P); \
+			}						\
+			__count -= aa_vec_unique(__pvec, __count, 0);	\
+			if (__count > 1) {				\
+				__new_ = aa_vec_find_or_create_label(__pvec,\
+						     __count, (GFP));	\
+				if (!__new_)				\
+					__new_ = ERR_PTR(-ENOMEM);	\
+			} else						\
+				__new_ = aa_get_label(&__pvec[0]->label); \
+			vec_cleanup(profile, __pvec, __count);		\
+		} else							\
+			__new_ = ERR_PTR(-ENOMEM);			\
+__do_cleanup:								\
+		vec_cleanup(label, __lvec, (L)->size);			\
+	} else {							\
+		(P) = labels_profile(L);				\
+		__new_ = (FN);						\
+	}								\
+__done:									\
+	if (PTR_ERR(__new_))						\
+		AA_DEBUG(DEBUG_LABEL, "label build failed\n");		\
+	(__new_);							\
+})
+
+
+#define __fn_build_in_scope(NS, P, NS_FN, OTHER_FN)			\
+({									\
+	struct aa_label *__new;						\
+	if ((P)->ns != (NS))						\
+		__new = (OTHER_FN);					\
+	else								\
+		__new = (NS_FN);					\
+	(__new);							\
+})
+
+#define fn_label_build_in_scope(L, P, GFP, NS_FN, OTHER_FN)		\
+({									\
+	fn_label_build((L), (P), (GFP),					\
+		__fn_build_in_scope(labels_ns(L), (P), (NS_FN), (OTHER_FN))); \
+})
+
+#endif /* __AA_LIB_H */
diff --git a/security/apparmor/include/match.h b/security/apparmor/include/match.h
new file mode 100644
index 000000000..7accb1c39
--- /dev/null
+++ b/security/apparmor/include/match.h
@@ -0,0 +1,193 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * AppArmor security module
+ *
+ * This file contains AppArmor policy dfa matching engine definitions.
+ *
+ * Copyright (C) 1998-2008 Novell/SUSE
+ * Copyright 2009-2012 Canonical Ltd.
+ */
+
+#ifndef __AA_MATCH_H
+#define __AA_MATCH_H
+
+#include <linux/kref.h>
+
+#define DFA_NOMATCH			0
+#define DFA_START			1
+
+
+/*
+ * The format used for transition tables is based on the GNU flex table
+ * file format (--tables-file option; see Table File Format in the flex
+ * info pages and the flex sources for documentation). The magic number
+ * used in the header is 0x1B5E783D instead of 0xF13C57B1 though, because
+ * new tables have been defined and others YY_ID_CHK (check) and YY_ID_DEF
+ * (default) tables are used slightly differently (see the apparmor-parser
+ * package).
+ *
+ *
+ * The data in the packed dfa is stored in network byte order, and the tables
+ * are arranged for flexibility.  We convert the table data to host native
+ * byte order.
+ *
+ * The dfa begins with a table set header, and is followed by the actual
+ * tables.
+ */
+
+#define YYTH_MAGIC	0x1B5E783D
+#define YYTH_FLAG_DIFF_ENCODE	1
+#define YYTH_FLAG_OOB_TRANS	2
+#define YYTH_FLAGS (YYTH_FLAG_DIFF_ENCODE | YYTH_FLAG_OOB_TRANS)
+
+#define MAX_OOB_SUPPORTED	1
+
+struct table_set_header {
+	u32 th_magic;		/* YYTH_MAGIC */
+	u32 th_hsize;
+	u32 th_ssize;
+	u16 th_flags;
+	char th_version[];
+};
+
+/* The YYTD_ID are one less than flex table mappings.  The flex id
+ * has 1 subtracted at table load time, this allows us to directly use the
+ * ID's as indexes.
+ */
+#define	YYTD_ID_ACCEPT	0
+#define YYTD_ID_BASE	1
+#define YYTD_ID_CHK	2
+#define YYTD_ID_DEF	3
+#define YYTD_ID_EC	4
+#define YYTD_ID_META	5
+#define YYTD_ID_ACCEPT2 6
+#define YYTD_ID_NXT	7
+#define YYTD_ID_TSIZE	8
+#define YYTD_ID_MAX	8
+
+#define YYTD_DATA8	1
+#define YYTD_DATA16	2
+#define YYTD_DATA32	4
+#define YYTD_DATA64	8
+
+/* ACCEPT & ACCEPT2 tables gets 6 dedicated flags, YYTD_DATAX define the
+ * first flags
+ */
+#define ACCEPT1_FLAGS(X) ((X) & 0x3f)
+#define ACCEPT2_FLAGS(X) ACCEPT1_FLAGS((X) >> YYTD_ID_ACCEPT2)
+#define TO_ACCEPT1_FLAG(X) ACCEPT1_FLAGS(X)
+#define TO_ACCEPT2_FLAG(X) (ACCEPT1_FLAGS(X) << YYTD_ID_ACCEPT2)
+#define DFA_FLAG_VERIFY_STATES 0x1000
+
+struct table_header {
+	u16 td_id;
+	u16 td_flags;
+	u32 td_hilen;
+	u32 td_lolen;
+	char td_data[];
+};
+
+#define TABLE_DATAU16(TABLE) ((u16 *)((TABLE)->td_data))
+#define TABLE_DATAU32(TABLE) ((u32 *)((TABLE)->td_data))
+#define DEFAULT_TABLE(DFA) ((u32 *)((DFA)->tables[YYTD_ID_DEF]->td_data))
+#define BASE_TABLE(DFA) ((u32 *)((DFA)->tables[YYTD_ID_BASE]->td_data))
+#define NEXT_TABLE(DFA) ((u32 *)((DFA)->tables[YYTD_ID_NXT]->td_data))
+#define CHECK_TABLE(DFA) ((u32 *)((DFA)->tables[YYTD_ID_CHK]->td_data))
+#define EQUIV_TABLE(DFA) ((u8 *)((DFA)->tables[YYTD_ID_EC]->td_data))
+#define ACCEPT_TABLE(DFA) ((u32 *)((DFA)->tables[YYTD_ID_ACCEPT]->td_data))
+#define ACCEPT_TABLE2(DFA) ((u32 *)((DFA)->tables[YYTD_ID_ACCEPT2]->td_data))
+
+struct aa_dfa {
+	struct kref count;
+	u16 flags;
+	u32 max_oob;
+	struct table_header *tables[YYTD_ID_TSIZE];
+};
+
+#define UNPACK_ARRAY(TABLE, BLOB, LEN, TTYPE, BTYPE, NTOHX)	\
+	do { \
+		typeof(LEN) __i; \
+		TTYPE *__t = (TTYPE *) TABLE; \
+		BTYPE *__b = (BTYPE *) BLOB; \
+		BUILD_BUG_ON(sizeof(TTYPE) != sizeof(BTYPE)); \
+		if (IS_ENABLED(CONFIG_CPU_BIG_ENDIAN)) \
+			memcpy(__t, __b, (LEN) * sizeof(BTYPE)); \
+		else /* copy & convert from big-endian */ \
+			for (__i = 0; __i < LEN; __i++) { \
+				__t[__i] = NTOHX(&__b[__i]); \
+			} \
+	} while (0)
+
+static inline size_t table_size(size_t len, size_t el_size)
+{
+	return ALIGN(sizeof(struct table_header) + len * el_size, 8);
+}
+
+#define aa_state_t unsigned int
+
+struct aa_dfa *aa_dfa_unpack(void *blob, size_t size, int flags);
+aa_state_t aa_dfa_match_len(struct aa_dfa *dfa, aa_state_t start,
+			    const char *str, int len);
+aa_state_t aa_dfa_match(struct aa_dfa *dfa, aa_state_t start,
+			const char *str);
+aa_state_t aa_dfa_next(struct aa_dfa *dfa, aa_state_t state, const char c);
+aa_state_t aa_dfa_outofband_transition(struct aa_dfa *dfa, aa_state_t state);
+aa_state_t aa_dfa_match_until(struct aa_dfa *dfa, aa_state_t start,
+			      const char *str, const char **retpos);
+aa_state_t aa_dfa_matchn_until(struct aa_dfa *dfa, aa_state_t start,
+			       const char *str, int n, const char **retpos);
+
+void aa_dfa_free_kref(struct kref *kref);
+
+/* This needs to be a power of 2 */
+#define WB_HISTORY_SIZE 32
+struct match_workbuf {
+	unsigned int pos;
+	unsigned int len;
+	aa_state_t history[WB_HISTORY_SIZE];
+};
+#define DEFINE_MATCH_WB(N)		\
+struct match_workbuf N = {		\
+	.pos = 0,			\
+	.len = 0,			\
+}
+
+aa_state_t aa_dfa_leftmatch(struct aa_dfa *dfa, aa_state_t start,
+			    const char *str, unsigned int *count);
+
+/**
+ * aa_get_dfa - increment refcount on dfa @p
+ * @dfa: dfa  (MAYBE NULL)
+ *
+ * Returns: pointer to @dfa if @dfa is NULL will return NULL
+ * Requires: @dfa must be held with valid refcount when called
+ */
+static inline struct aa_dfa *aa_get_dfa(struct aa_dfa *dfa)
+{
+	if (dfa)
+		kref_get(&(dfa->count));
+
+	return dfa;
+}
+
+/**
+ * aa_put_dfa - put a dfa refcount
+ * @dfa: dfa to put refcount   (MAYBE NULL)
+ *
+ * Requires: if @dfa != NULL that a valid refcount be held
+ */
+static inline void aa_put_dfa(struct aa_dfa *dfa)
+{
+	if (dfa)
+		kref_put(&dfa->count, aa_dfa_free_kref);
+}
+
+#define MATCH_FLAG_DIFF_ENCODE 0x80000000
+#define MARK_DIFF_ENCODE 0x40000000
+#define MATCH_FLAG_OOB_TRANSITION 0x20000000
+#define MARK_DIFF_ENCODE_VERIFIED 0x10000000
+#define MATCH_FLAGS_MASK 0xff000000
+#define MATCH_FLAGS_VALID (MATCH_FLAG_DIFF_ENCODE | MATCH_FLAG_OOB_TRANSITION)
+#define MATCH_FLAGS_INVALID (MATCH_FLAGS_MASK & ~MATCH_FLAGS_VALID)
+
+#endif /* __AA_MATCH_H */
diff --git a/security/apparmor/include/mount.h b/security/apparmor/include/mount.h
new file mode 100644
index 000000000..46834f828
--- /dev/null
+++ b/security/apparmor/include/mount.h
@@ -0,0 +1,60 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * AppArmor security module
+ *
+ * This file contains AppArmor file mediation function definitions.
+ *
+ * Copyright 2017 Canonical Ltd.
+ */
+
+#ifndef __AA_MOUNT_H
+#define __AA_MOUNT_H
+
+#include <linux/fs.h>
+#include <linux/path.h>
+
+#include "domain.h"
+#include "policy.h"
+
+/* mount perms */
+#define AA_MAY_PIVOTROOT	0x01
+#define AA_MAY_MOUNT		0x02
+#define AA_MAY_UMOUNT		0x04
+#define AA_AUDIT_DATA		0x40
+#define AA_MNT_CONT_MATCH	0x40
+
+#define AA_MS_IGNORE_MASK (MS_KERNMOUNT | MS_NOSEC | MS_ACTIVE | MS_BORN)
+
+int aa_remount(const struct cred *subj_cred,
+	       struct aa_label *label, const struct path *path,
+	       unsigned long flags, void *data);
+
+int aa_bind_mount(const struct cred *subj_cred,
+		  struct aa_label *label, const struct path *path,
+		  const char *old_name, unsigned long flags);
+
+
+int aa_mount_change_type(const struct cred *subj_cred,
+			 struct aa_label *label, const struct path *path,
+			 unsigned long flags);
+
+int aa_move_mount_old(const struct cred *subj_cred,
+		      struct aa_label *label, const struct path *path,
+		      const char *old_name);
+int aa_move_mount(const struct cred *subj_cred,
+		  struct aa_label *label, const struct path *from_path,
+		  const struct path *to_path);
+
+int aa_new_mount(const struct cred *subj_cred,
+		 struct aa_label *label, const char *dev_name,
+		 const struct path *path, const char *type, unsigned long flags,
+		 void *data);
+
+int aa_umount(const struct cred *subj_cred,
+	      struct aa_label *label, struct vfsmount *mnt, int flags);
+
+int aa_pivotroot(const struct cred *subj_cred,
+		 struct aa_label *label, const struct path *old_path,
+		 const struct path *new_path);
+
+#endif /* __AA_MOUNT_H */
diff --git a/security/apparmor/include/net.h b/security/apparmor/include/net.h
new file mode 100644
index 000000000..0d0b0ce42
--- /dev/null
+++ b/security/apparmor/include/net.h
@@ -0,0 +1,119 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * AppArmor security module
+ *
+ * This file contains AppArmor network mediation definitions.
+ *
+ * Copyright (C) 1998-2008 Novell/SUSE
+ * Copyright 2009-2017 Canonical Ltd.
+ */
+
+#ifndef __AA_NET_H
+#define __AA_NET_H
+
+#include <net/sock.h>
+#include <linux/path.h>
+
+#include "apparmorfs.h"
+#include "label.h"
+#include "perms.h"
+#include "policy.h"
+
+#define AA_MAY_SEND		AA_MAY_WRITE
+#define AA_MAY_RECEIVE		AA_MAY_READ
+
+#define AA_MAY_SHUTDOWN		AA_MAY_DELETE
+
+#define AA_MAY_CONNECT		AA_MAY_OPEN
+#define AA_MAY_ACCEPT		0x00100000
+
+#define AA_MAY_BIND		0x00200000
+#define AA_MAY_LISTEN		0x00400000
+
+#define AA_MAY_SETOPT		0x01000000
+#define AA_MAY_GETOPT		0x02000000
+
+#define NET_PERMS_MASK (AA_MAY_SEND | AA_MAY_RECEIVE | AA_MAY_CREATE |    \
+			AA_MAY_SHUTDOWN | AA_MAY_BIND | AA_MAY_LISTEN |	  \
+			AA_MAY_CONNECT | AA_MAY_ACCEPT | AA_MAY_SETATTR | \
+			AA_MAY_GETATTR | AA_MAY_SETOPT | AA_MAY_GETOPT)
+
+#define NET_FS_PERMS (AA_MAY_SEND | AA_MAY_RECEIVE | AA_MAY_CREATE |	\
+		      AA_MAY_SHUTDOWN | AA_MAY_CONNECT | AA_MAY_RENAME |\
+		      AA_MAY_SETATTR | AA_MAY_GETATTR | AA_MAY_CHMOD |	\
+		      AA_MAY_CHOWN | AA_MAY_CHGRP | AA_MAY_LOCK |	\
+		      AA_MAY_MPROT)
+
+#define NET_PEER_MASK (AA_MAY_SEND | AA_MAY_RECEIVE | AA_MAY_CONNECT |	\
+		       AA_MAY_ACCEPT)
+struct aa_sk_ctx {
+	struct aa_label __rcu *label;
+	struct aa_label __rcu *peer;
+	struct aa_label __rcu *peer_lastupdate;	/* ptr cmp only, no deref */
+};
+
+static inline struct aa_sk_ctx *aa_sock(const struct sock *sk)
+{
+	return sk->sk_security + apparmor_blob_sizes.lbs_sock;
+}
+
+#define DEFINE_AUDIT_NET(NAME, OP, CRED, SK, F, T, P)			  \
+	struct lsm_network_audit NAME ## _net = { .sk = (SK),		  \
+						  .family = (F)};	  \
+	DEFINE_AUDIT_DATA(NAME,						  \
+			  ((SK) && (F) != AF_UNIX) ? LSM_AUDIT_DATA_NET : \
+						     LSM_AUDIT_DATA_NONE, \
+						     AA_CLASS_NET,        \
+			  OP);						  \
+	NAME.common.u.net = &(NAME ## _net);				  \
+	NAME.subj_cred = (CRED);					  \
+	NAME.net.type = (T);						  \
+	NAME.net.protocol = (P)
+
+#define DEFINE_AUDIT_SK(NAME, OP, CRED, SK)				     \
+	DEFINE_AUDIT_NET(NAME, OP, CRED, SK, (SK)->sk_family, (SK)->sk_type, \
+			 (SK)->sk_protocol)
+
+
+struct aa_secmark {
+	u8 audit;
+	u8 deny;
+	u32 secid;
+	char *label;
+};
+
+extern struct aa_sfs_entry aa_sfs_entry_network[];
+extern struct aa_sfs_entry aa_sfs_entry_networkv9[];
+
+int aa_do_perms(struct aa_profile *profile, struct aa_policydb *policy,
+		aa_state_t state, u32 request, struct aa_perms *p,
+		struct apparmor_audit_data *ad);
+/* passing in state returned by XXX_mediates_AF() */
+aa_state_t aa_match_to_prot(struct aa_policydb *policy, aa_state_t state,
+			    u32 request, u16 af, int type, int protocol,
+			    struct aa_perms **p, const char **info);
+void audit_net_cb(struct audit_buffer *ab, void *va);
+int aa_profile_af_perm(struct aa_profile *profile,
+		       struct apparmor_audit_data *ad,
+		       u32 request, u16 family, int type, int protocol);
+int aa_af_perm(const struct cred *subj_cred, struct aa_label *label,
+	       const char *op, u32 request, u16 family,
+	       int type, int protocol);
+static inline int aa_profile_af_sk_perm(struct aa_profile *profile,
+					struct apparmor_audit_data *ad,
+					u32 request,
+					struct sock *sk)
+{
+	return aa_profile_af_perm(profile, ad, request, sk->sk_family,
+				  sk->sk_type, sk->sk_protocol);
+}
+int aa_sk_perm(const char *op, u32 request, struct sock *sk);
+
+int aa_sock_file_perm(const struct cred *subj_cred, struct aa_label *label,
+		      const char *op, u32 request,
+		      struct file *file);
+
+int apparmor_secmark_check(struct aa_label *label, char *op, u32 request,
+			   u32 secid, const struct sock *sk);
+
+#endif /* __AA_NET_H */
diff --git a/security/apparmor/include/path.h b/security/apparmor/include/path.h
new file mode 100644
index 000000000..8bb915d48
--- /dev/null
+++ b/security/apparmor/include/path.h
@@ -0,0 +1,33 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * AppArmor security module
+ *
+ * This file contains AppArmor basic path manipulation function definitions.
+ *
+ * Copyright (C) 1998-2008 Novell/SUSE
+ * Copyright 2009-2010 Canonical Ltd.
+ */
+
+#ifndef __AA_PATH_H
+#define __AA_PATH_H
+
+enum path_flags {
+	PATH_IS_DIR = 0x1,		/* path is a directory */
+	PATH_SOCK_COND = 0x2,
+	PATH_CONNECT_PATH = 0x4,	/* connect disconnected paths to / */
+	PATH_CHROOT_REL = 0x8,		/* do path lookup relative to chroot */
+	PATH_CHROOT_NSCONNECT = 0x10,	/* connect paths that are at ns root */
+
+	PATH_DELEGATE_DELETED = 0x10000, /* delegate deleted files */
+	PATH_MEDIATE_DELETED = 0x20000,	 /* mediate deleted paths */
+};
+
+int aa_path_name(const struct path *path, int flags, char *buffer,
+		 const char **name, const char **info,
+		 const char *disconnected);
+
+#define IN_ATOMIC true
+char *aa_get_buffer(bool in_atomic);
+void aa_put_buffer(char *buf);
+
+#endif /* __AA_PATH_H */
diff --git a/security/apparmor/include/perms.h b/security/apparmor/include/perms.h
new file mode 100644
index 000000000..37a3781b9
--- /dev/null
+++ b/security/apparmor/include/perms.h
@@ -0,0 +1,219 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * AppArmor security module
+ *
+ * This file contains AppArmor basic permission sets definitions.
+ *
+ * Copyright 2017 Canonical Ltd.
+ */
+
+#ifndef __AA_PERM_H
+#define __AA_PERM_H
+
+#include <linux/fs.h>
+#include "label.h"
+
+#define AA_MAY_EXEC		MAY_EXEC
+#define AA_MAY_WRITE		MAY_WRITE
+#define AA_MAY_READ		MAY_READ
+#define AA_MAY_APPEND		MAY_APPEND
+
+#define AA_MAY_CREATE		0x0010
+#define AA_MAY_DELETE		0x0020
+#define AA_MAY_OPEN		0x0040
+#define AA_MAY_RENAME		0x0080		/* pair */
+
+#define AA_MAY_SETATTR		0x0100		/* meta write */
+#define AA_MAY_GETATTR		0x0200		/* meta read */
+#define AA_MAY_SETCRED		0x0400		/* security cred/attr */
+#define AA_MAY_GETCRED		0x0800
+
+#define AA_MAY_CHMOD		0x1000		/* pair */
+#define AA_MAY_CHOWN		0x2000		/* pair */
+#define AA_MAY_CHGRP		0x4000		/* pair */
+#define AA_MAY_LOCK		0x8000		/* LINK_SUBSET overlaid */
+
+#define AA_EXEC_MMAP		0x00010000
+#define AA_MAY_MPROT		0x00020000	/* extend conditions */
+#define AA_MAY_LINK		0x00040000	/* pair */
+#define AA_MAY_SNAPSHOT		0x00080000	/* pair */
+
+#define AA_MAY_DELEGATE
+#define AA_CONT_MATCH		0x08000000
+
+#define AA_MAY_STACK		0x10000000
+#define AA_MAY_ONEXEC		0x20000000 /* either stack or change_profile */
+#define AA_MAY_CHANGE_PROFILE	0x40000000
+#define AA_MAY_CHANGEHAT	0x80000000
+
+#define AA_LINK_SUBSET		AA_MAY_LOCK	/* overlaid */
+
+#define AA_MAY_CREATE_SQPOLL   AA_MAY_CREATE
+#define AA_MAY_OVERRIDE_CRED   AA_MAY_APPEND
+#define AA_URING_PERM_MASK     (AA_MAY_OVERRIDE_CRED | AA_MAY_CREATE_SQPOLL)
+
+#define PERMS_CHRS_MASK (MAY_READ | MAY_WRITE | AA_MAY_CREATE |		\
+			 AA_MAY_DELETE | AA_MAY_LINK | AA_MAY_LOCK |	\
+			 AA_MAY_EXEC | AA_EXEC_MMAP | AA_MAY_APPEND)
+
+#define PERMS_NAMES_MASK (PERMS_CHRS_MASK | AA_MAY_OPEN | AA_MAY_RENAME |     \
+			  AA_MAY_SETATTR | AA_MAY_GETATTR | AA_MAY_SETCRED | \
+			  AA_MAY_GETCRED | AA_MAY_CHMOD | AA_MAY_CHOWN | \
+			  AA_MAY_CHGRP | AA_MAY_MPROT | AA_MAY_SNAPSHOT | \
+			  AA_MAY_STACK | AA_MAY_ONEXEC |		\
+			  AA_MAY_CHANGE_PROFILE | AA_MAY_CHANGEHAT)
+
+extern const char aa_file_perm_chrs[];
+extern const char *aa_file_perm_names[];
+
+struct aa_perms {
+	u32 allow;
+	u32 deny;	/* explicit deny, or conflict if allow also set */
+
+	u32 subtree;	/* allow perm on full subtree only when allow is set */
+	u32 cond;	/* set only when ~allow and ~deny */
+
+	u32 kill;	/* set only when ~allow | deny */
+	u32 complain;	/* accumulates only used when ~allow & ~deny */
+	u32 prompt;	/* accumulates only used when ~allow & ~deny */
+
+	u32 audit;	/* set only when allow is set */
+	u32 quiet;	/* set only when ~allow | deny */
+	u32 hide;	/* set only when  ~allow | deny */
+
+
+	u32 xindex;
+	u32 tag;	/* tag string index, if present */
+	u32 label;	/* label string index, if present */
+};
+
+/*
+ * Indexes are broken into a 24 bit index and 8 bit flag.
+ * For the index to be valid there must be a value in the flag
+ */
+#define AA_INDEX_MASK			0x00ffffff
+#define AA_INDEX_FLAG_MASK		0xff000000
+#define AA_INDEX_NONE			0
+
+#define ALL_PERMS_MASK 0xffffffff
+extern struct aa_perms nullperms;
+extern struct aa_perms allperms;
+
+/**
+ * aa_perms_accum_raw - accumulate perms with out masking off overlapping perms
+ * @accum: perms struct to accumulate into
+ * @addend: perms struct to add to @accum
+ */
+static inline void aa_perms_accum_raw(struct aa_perms *accum,
+				      struct aa_perms *addend)
+{
+	accum->deny |= addend->deny;
+	accum->allow &= addend->allow & ~addend->deny;
+	accum->audit |= addend->audit & addend->allow;
+	accum->quiet &= addend->quiet & ~addend->allow;
+	accum->kill |= addend->kill & ~addend->allow;
+	accum->complain |= addend->complain & ~addend->allow & ~addend->deny;
+	accum->cond |= addend->cond & ~addend->allow & ~addend->deny;
+	accum->hide &= addend->hide & ~addend->allow;
+	accum->prompt |= addend->prompt & ~addend->allow & ~addend->deny;
+	accum->subtree |= addend->subtree & ~addend->deny;
+
+	if (!accum->xindex)
+		accum->xindex = addend->xindex;
+	if (!accum->tag)
+		accum->tag = addend->tag;
+	if (!accum->label)
+		accum->label = addend->label;
+}
+
+/**
+ * aa_perms_accum - accumulate perms, masking off overlapping perms
+ * @accum: perms struct to accumulate into
+ * @addend: perms struct to add to @accum
+ */
+static inline void aa_perms_accum(struct aa_perms *accum,
+				  struct aa_perms *addend)
+{
+	accum->deny |= addend->deny;
+	accum->allow &= addend->allow & ~accum->deny;
+	accum->audit |= addend->audit & accum->allow;
+	accum->quiet &= addend->quiet & ~accum->allow;
+	accum->kill |= addend->kill & ~accum->allow;
+	accum->complain |= addend->complain & ~accum->allow & ~accum->deny;
+	accum->cond |= addend->cond & ~accum->allow & ~accum->deny;
+	accum->hide &= addend->hide & ~accum->allow;
+	accum->prompt |= addend->prompt & ~accum->allow & ~accum->deny;
+	accum->subtree &= addend->subtree & ~accum->deny;
+
+	if (!accum->xindex)
+		accum->xindex = addend->xindex;
+	if (!accum->tag)
+		accum->tag = addend->tag;
+	if (!accum->label)
+		accum->label = addend->label;
+}
+
+#define xcheck(FN1, FN2)	\
+({				\
+	int e, error = FN1;	\
+	e = FN2;		\
+	if (e)			\
+		error = e;	\
+	error;			\
+})
+
+
+/*
+ * TODO: update for labels pointing to labels instead of profiles
+ * TODO: optimize the walk, currently does subwalk of L2 for each P in L1
+ * gah this doesn't allow for label compound check!!!!
+ */
+#define xcheck_ns_profile_profile(P1, P2, FN, args...)		\
+({								\
+	int ____e = 0;						\
+	if (P1->ns == P2->ns)					\
+		____e = FN((P1), (P2), args);			\
+	(____e);						\
+})
+
+#define xcheck_ns_profile_label(P, L, FN, args...)		\
+({								\
+	struct aa_profile *__p2;				\
+	fn_for_each((L), __p2,					\
+		    xcheck_ns_profile_profile((P), __p2, (FN), args));	\
+})
+
+#define xcheck_ns_labels(L1, L2, FN, args...)			\
+({								\
+	struct aa_profile *__p1;				\
+	fn_for_each((L1), __p1, FN(__p1, (L2), args));		\
+})
+
+/* Do the cross check but applying FN at the profiles level */
+#define xcheck_labels_profiles(L1, L2, FN, args...)		\
+	xcheck_ns_labels((L1), (L2), xcheck_ns_profile_label, (FN), args)
+
+#define xcheck_labels(L1, L2, P, FN1, FN2)			\
+	xcheck(fn_for_each((L1), (P), (FN1)), fn_for_each((L2), (P), (FN2)))
+
+
+extern struct aa_perms default_perms;
+
+
+void aa_perm_mask_to_str(char *str, size_t str_size, const char *chrs,
+			 u32 mask);
+void aa_audit_perm_names(struct audit_buffer *ab, const char * const *names,
+			 u32 mask);
+void aa_audit_perm_mask(struct audit_buffer *ab, u32 mask, const char *chrs,
+			u32 chrsmask, const char * const *names, u32 namesmask);
+void aa_apply_modes_to_perms(struct aa_profile *profile,
+			     struct aa_perms *perms);
+void aa_perms_accum(struct aa_perms *accum, struct aa_perms *addend);
+void aa_perms_accum_raw(struct aa_perms *accum, struct aa_perms *addend);
+void aa_profile_match_label(struct aa_profile *profile,
+			    struct aa_ruleset *rules, struct aa_label *label,
+			    int type, u32 request, struct aa_perms *perms);
+int aa_check_perms(struct aa_profile *profile, struct aa_perms *perms,
+		   u32 request, struct apparmor_audit_data *ad,
+		   void (*cb)(struct audit_buffer *, void *));
+#endif /* __AA_PERM_H */
diff --git a/security/apparmor/include/policy.h b/security/apparmor/include/policy.h
new file mode 100644
index 000000000..3895f8774
--- /dev/null
+++ b/security/apparmor/include/policy.h
@@ -0,0 +1,450 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * AppArmor security module
+ *
+ * This file contains AppArmor policy definitions.
+ *
+ * Copyright (C) 1998-2008 Novell/SUSE
+ * Copyright 2009-2010 Canonical Ltd.
+ */
+
+#ifndef __AA_POLICY_H
+#define __AA_POLICY_H
+
+#include <linux/capability.h>
+#include <linux/cred.h>
+#include <linux/kref.h>
+#include <linux/rhashtable.h>
+#include <linux/sched.h>
+#include <linux/slab.h>
+#include <linux/socket.h>
+
+#include "apparmor.h"
+#include "audit.h"
+#include "capability.h"
+#include "domain.h"
+#include "file.h"
+#include "lib.h"
+#include "label.h"
+#include "net.h"
+#include "perms.h"
+#include "resource.h"
+
+
+struct aa_ns;
+
+extern int unprivileged_userns_apparmor_policy;
+extern int aa_unprivileged_unconfined_restricted;
+
+extern const char *const aa_profile_mode_names[];
+#define APPARMOR_MODE_NAMES_MAX_INDEX 4
+
+#define PROFILE_MODE(_profile, _mode)		\
+	((aa_g_profile_mode == (_mode)) ||	\
+	 ((_profile)->mode == (_mode)))
+
+#define COMPLAIN_MODE(_profile)	PROFILE_MODE((_profile), APPARMOR_COMPLAIN)
+
+#define USER_MODE(_profile)	PROFILE_MODE((_profile), APPARMOR_USER)
+
+#define KILL_MODE(_profile) PROFILE_MODE((_profile), APPARMOR_KILL)
+
+#define PROFILE_IS_HAT(_profile) ((_profile)->label.flags & FLAG_HAT)
+
+#define CHECK_DEBUG1(_profile) ((_profile)->label.flags & FLAG_DEBUG1)
+
+#define CHECK_DEBUG2(_profile) ((_profile)->label.flags & FLAG_DEBUG2)
+
+#define profile_is_stale(_profile) (label_is_stale(&(_profile)->label))
+
+#define on_list_rcu(X) (!list_empty(X) && (X)->prev != LIST_POISON2)
+
+/* flags in the dfa accept2 table */
+enum dfa_accept_flags {
+	ACCEPT_FLAG_OWNER = 1,
+};
+
+/*
+ * FIXME: currently need a clean way to replace and remove profiles as a
+ * set.  It should be done at the namespace level.
+ * Either, with a set of profiles loaded at the namespace level or via
+ * a mark and remove marked interface.
+ */
+enum profile_mode {
+	APPARMOR_ENFORCE,	/* enforce access rules */
+	APPARMOR_COMPLAIN,	/* allow and log access violations */
+	APPARMOR_KILL,		/* kill task on access violation */
+	APPARMOR_UNCONFINED,	/* profile set to unconfined */
+	APPARMOR_USER,		/* modified complain mode to userspace */
+};
+
+
+struct aa_tags_header {
+	u32 mask;	/* bit mask matching permissions */
+	u32 count;	/* number of strings per entry */
+	u32 size;	/* size of all strings covered by count */
+	u32 tags;	/* index into string table */
+};
+
+struct aa_tags_struct {
+	struct {
+		u32 size;		/* number of entries in tagsets */
+		u32 *table;		/* indexes into headers & strs */
+	} sets;
+	struct {
+		u32 size;		/* number of headers == num of strs */
+		struct aa_tags_header *table;
+	} hdrs;
+	struct aa_str_table strs;
+};
+
+/* struct aa_policydb - match engine for a policy
+ * @count: refcount for the pdb
+ * @dfa: dfa pattern match
+ * @perms: table of permissions
+ * @size: number of entries in @perms
+ * @trans: table of strings, index by x
+ * @tags: table of tags that perms->tag indexes
+ * @start:_states to start in for each class
+ * start: set of start states for the different classes of data
+ */
+struct aa_policydb {
+	struct kref count;
+	struct aa_dfa *dfa;
+	struct {
+		struct aa_perms *perms;
+		u32 size;
+	};
+	struct aa_str_table trans;
+	struct aa_tags_struct tags;
+	aa_state_t start[AA_CLASS_LAST + 1];
+};
+
+extern struct aa_policydb *nullpdb;
+
+void aa_destroy_tags(struct aa_tags_struct *tags);
+struct aa_policydb *aa_alloc_pdb(gfp_t gfp);
+void aa_pdb_free_kref(struct kref *kref);
+
+/**
+ * aa_get_pdb - increment refcount on @pdb
+ * @pdb: policydb  (MAYBE NULL)
+ *
+ * Returns: pointer to @pdb if @pdb is NULL will return NULL
+ * Requires: @pdb must be held with valid refcount when called
+ */
+static inline struct aa_policydb *aa_get_pdb(struct aa_policydb *pdb)
+{
+	if (pdb)
+		kref_get(&(pdb->count));
+
+	return pdb;
+}
+
+/**
+ * aa_put_pdb - put a pdb refcount
+ * @pdb: pdb to put refcount   (MAYBE NULL)
+ *
+ * Requires: if @pdb != NULL that a valid refcount be held
+ */
+static inline void aa_put_pdb(struct aa_policydb *pdb)
+{
+	if (pdb)
+		kref_put(&pdb->count, aa_pdb_free_kref);
+}
+
+/* lookup perm that doesn't have and object conditional */
+static inline struct aa_perms *aa_lookup_perms(struct aa_policydb *policy,
+					       aa_state_t state)
+{
+	unsigned int index = ACCEPT_TABLE(policy->dfa)[state];
+
+	if (!(policy->perms))
+		return &default_perms;
+
+	return &(policy->perms[index]);
+}
+
+/* struct aa_data - generic data structure
+ * key: name for retrieving this data
+ * size: size of data in bytes
+ * data: binary data
+ * head: reserved for rhashtable
+ */
+struct aa_data {
+	char *key;
+	u32 size;
+	char *data;
+	struct rhash_head head;
+};
+
+/* struct aa_ruleset - data covering mediation rules
+ * @list: list the rule is on
+ * @size: the memory consumed by this ruleset
+ * @policy: general match rules governing policy
+ * @file: The set of rules governing basic file access and domain transitions
+ * @caps: capabilities for the profile
+ * @rlimits: rlimits for the profile
+ * @secmark_count: number of secmark entries
+ * @secmark: secmark label match info
+ */
+struct aa_ruleset {
+	int size;
+
+	/* TODO: merge policy and file */
+	struct aa_policydb *policy;
+	struct aa_policydb *file;
+	struct aa_caps caps;
+
+	struct aa_rlimit rlimits;
+
+	int secmark_count;
+	struct aa_secmark *secmark;
+};
+
+
+/* struct aa_attachment - data and rules for a profiles attachment
+ * @list:
+ * @xmatch_str: human readable attachment string
+ * @xmatch: optional extended matching for unconfined executables names
+ * @xmatch_len: xmatch prefix len, used to determine xmatch priority
+ * @xattr_count: number of xattrs in table
+ * @xattrs: table of xattrs
+ */
+struct aa_attachment {
+	const char *xmatch_str;
+	struct aa_policydb *xmatch;
+	unsigned int xmatch_len;
+	int xattr_count;
+	char **xattrs;
+};
+
+/* struct aa_profile - basic confinement data
+ * @base - base components of the profile (name, refcount, lists, lock ...)
+ * @parent: parent of profile
+ * @ns: namespace the profile is in
+ * @rename: optional profile name that this profile renamed
+ *
+ * @audit: the auditing mode of the profile
+ * @mode: the enforcement mode of the profile
+ * @path_flags: flags controlling path generation behavior
+ * @signal: the signal that should be used when kill is used
+ * @disconnected: what to prepend if attach_disconnected is specified
+ * @attach: attachment rules for the profile
+ * @rules: rules to be enforced
+ *
+ * learning_cache: the accesses learned in complain mode
+ * raw_data: rawdata of the loaded profile policy
+ * hash: cryptographic hash of the profile
+ * @dents: dentries for the profiles file entries in apparmorfs
+ * @dirname: name of the profile dir in apparmorfs
+ * @dents: set of dentries associated with the profile
+ * @data: hashtable for free-form policy aa_data
+ * @label - label this profile is an extension of
+ * @rules - label with the rule vec on its end
+ *
+ * The AppArmor profile contains the basic confinement data.  Each profile
+ * has a name, and exists in a namespace.  The @name and @exec_match are
+ * used to determine profile attachment against unconfined tasks.  All other
+ * attachments are determined by profile X transition rules.
+ *
+ * Profiles have a hierarchy where hats and children profiles keep
+ * a reference to their parent.
+ *
+ * Profile names can not begin with a : and can not contain the \0
+ * character.  If a profile name begins with / it will be considered when
+ * determining profile attachment on "unconfined" tasks.
+ */
+struct aa_profile {
+	struct aa_policy base;
+	struct aa_profile __rcu *parent;
+
+	struct aa_ns *ns;
+	const char *rename;
+
+	enum audit_mode audit;
+	long mode;
+	u32 path_flags;
+	int signal;
+	const char *disconnected;
+
+	struct aa_attachment attach;
+
+	struct aa_loaddata *rawdata;
+	unsigned char *hash;
+	char *dirname;
+	struct dentry *dents[AAFS_PROF_SIZEOF];
+	struct rhashtable *data;
+
+	int n_rules;
+	/* special - variable length must be last entry in profile */
+	struct aa_label label;
+};
+
+extern enum profile_mode aa_g_profile_mode;
+
+#define AA_MAY_LOAD_POLICY	AA_MAY_APPEND
+#define AA_MAY_REPLACE_POLICY	AA_MAY_WRITE
+#define AA_MAY_REMOVE_POLICY	AA_MAY_DELETE
+
+#define profiles_ns(P) ((P)->ns)
+#define name_is_shared(A, B) ((A)->hname && (A)->hname == (B)->hname)
+
+struct aa_ruleset *aa_alloc_ruleset(gfp_t gfp);
+struct aa_profile *aa_alloc_profile(const char *name, struct aa_proxy *proxy,
+				    gfp_t gfp);
+struct aa_profile *aa_alloc_null(struct aa_profile *parent, const char *name,
+				 gfp_t gfp);
+struct aa_profile *aa_new_learning_profile(struct aa_profile *parent, bool hat,
+					   const char *base, gfp_t gfp);
+void aa_free_profile(struct aa_profile *profile);
+struct aa_profile *aa_find_child(struct aa_profile *parent, const char *name);
+struct aa_profile *aa_lookupn_profile(struct aa_ns *ns, const char *hname,
+				      size_t n);
+struct aa_profile *aa_fqlookupn_profile(struct aa_label *base,
+					const char *fqname, size_t n);
+
+ssize_t aa_replace_profiles(struct aa_ns *view, struct aa_label *label,
+			    u32 mask, struct aa_loaddata *udata);
+ssize_t aa_remove_profiles(struct aa_ns *view, struct aa_label *label,
+			   char *name, size_t size);
+void __aa_profile_list_release(struct list_head *head);
+
+#define profile_unconfined(X) ((X)->mode == APPARMOR_UNCONFINED)
+
+/**
+ * aa_get_newest_profile - simple wrapper fn to wrap the label version
+ * @p: profile (NOT NULL)
+ *
+ * Returns refcount to newest version of the profile (maybe @p)
+ *
+ * Requires: @p must be held with a valid refcount
+ */
+static inline struct aa_profile *aa_get_newest_profile(struct aa_profile *p)
+{
+	return labels_profile(aa_get_newest_label(&p->label));
+}
+
+static inline aa_state_t RULE_MEDIATES(struct aa_ruleset *rules,
+				       unsigned char class)
+{
+	if (class <= AA_CLASS_LAST)
+		return rules->policy->start[class];
+	else
+		return aa_dfa_match_len(rules->policy->dfa,
+					rules->policy->start[0], &class, 1);
+}
+
+static inline aa_state_t RULE_MEDIATES_v9NET(struct aa_ruleset *rules)
+{
+	return RULE_MEDIATES(rules, AA_CLASS_NETV9);
+}
+
+static inline aa_state_t RULE_MEDIATES_NET(struct aa_ruleset *rules)
+{
+	/* can not use RULE_MEDIATE_v9AF here, because AF match fail
+	 * can not be distiguished from class match fail, and we only
+	 * fallback to checking older class on class match failure
+	 */
+	aa_state_t state = RULE_MEDIATES(rules, AA_CLASS_NETV9);
+
+	/* fallback and check v7/8 if v9 is NOT mediated */
+	if (!state)
+		state = RULE_MEDIATES(rules, AA_CLASS_NET);
+
+	return state;
+}
+
+
+void aa_compute_profile_mediates(struct aa_profile *profile);
+static inline bool profile_mediates(struct aa_profile *profile,
+				    unsigned char class)
+{
+	return label_mediates(&profile->label, class);
+}
+
+static inline bool profile_mediates_safe(struct aa_profile *profile,
+					 unsigned char class)
+{
+	return label_mediates_safe(&profile->label, class);
+}
+
+/**
+ * aa_get_profile - increment refcount on profile @p
+ * @p: profile  (MAYBE NULL)
+ *
+ * Returns: pointer to @p if @p is NULL will return NULL
+ * Requires: @p must be held with valid refcount when called
+ */
+static inline struct aa_profile *aa_get_profile(struct aa_profile *p)
+{
+	if (p)
+		kref_get(&(p->label.count.count));
+
+	return p;
+}
+
+/**
+ * aa_get_profile_not0 - increment refcount on profile @p found via lookup
+ * @p: profile  (MAYBE NULL)
+ *
+ * Returns: pointer to @p if @p is NULL will return NULL
+ * Requires: @p must be held with valid refcount when called
+ */
+static inline struct aa_profile *aa_get_profile_not0(struct aa_profile *p)
+{
+	if (p && kref_get_unless_zero(&p->label.count.count))
+		return p;
+
+	return NULL;
+}
+
+/**
+ * aa_get_profile_rcu - increment a refcount profile that can be replaced
+ * @p: pointer to profile that can be replaced (NOT NULL)
+ *
+ * Returns: pointer to a refcounted profile.
+ *     else NULL if no profile
+ */
+static inline struct aa_profile *aa_get_profile_rcu(struct aa_profile __rcu **p)
+{
+	struct aa_profile *c;
+
+	rcu_read_lock();
+	do {
+		c = rcu_dereference(*p);
+	} while (c && !kref_get_unless_zero(&c->label.count.count));
+	rcu_read_unlock();
+
+	return c;
+}
+
+/**
+ * aa_put_profile - decrement refcount on profile @p
+ * @p: profile  (MAYBE NULL)
+ */
+static inline void aa_put_profile(struct aa_profile *p)
+{
+	if (p)
+		kref_put(&p->label.count.count, aa_label_kref);
+}
+
+static inline int AUDIT_MODE(struct aa_profile *profile)
+{
+	if (aa_g_audit != AUDIT_NORMAL)
+		return aa_g_audit;
+
+	return profile->audit;
+}
+
+bool aa_policy_view_capable(const struct cred *subj_cred,
+			    struct aa_label *label, struct aa_ns *ns);
+bool aa_policy_admin_capable(const struct cred *subj_cred,
+			     struct aa_label *label, struct aa_ns *ns);
+int aa_may_manage_policy(const struct cred *subj_cred,
+			 struct aa_label *label, struct aa_ns *ns,
+			 const struct cred *ocred, u32 mask);
+bool aa_current_policy_view_capable(struct aa_ns *ns);
+bool aa_current_policy_admin_capable(struct aa_ns *ns);
+
+#endif /* __AA_POLICY_H */
diff --git a/security/apparmor/include/policy_compat.h b/security/apparmor/include/policy_compat.h
new file mode 100644
index 000000000..af0e17433
--- /dev/null
+++ b/security/apparmor/include/policy_compat.h
@@ -0,0 +1,33 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * AppArmor security module
+ *
+ * Code to provide backwards compatibility with older policy versions,
+ * by converting/mapping older policy formats into the newer internal
+ * formats.
+ *
+ * Copyright 2022 Canonical Ltd.
+ */
+
+#ifndef __POLICY_COMPAT_H
+#define __POLICY_COMPAT_H
+
+#include "policy.h"
+
+#define K_ABI_MASK 0x3ff
+#define FORCE_COMPLAIN_FLAG 0x800
+#define VERSION_LT(X, Y) (((X) & K_ABI_MASK) < ((Y) & K_ABI_MASK))
+#define VERSION_LE(X, Y) (((X) & K_ABI_MASK) <= ((Y) & K_ABI_MASK))
+#define VERSION_GT(X, Y) (((X) & K_ABI_MASK) > ((Y) & K_ABI_MASK))
+
+#define v5	5	/* base version */
+#define v6	6	/* per entry policydb mediation check */
+#define v7	7
+#define v8	8	/* full network masking */
+#define v9	9	/* xbits are used as permission bits in policydb */
+
+int aa_compat_map_xmatch(struct aa_policydb *policy);
+int aa_compat_map_policy(struct aa_policydb *policy, u32 version);
+int aa_compat_map_file(struct aa_policydb *policy);
+
+#endif /* __POLICY_COMPAT_H */
diff --git a/security/apparmor/include/policy_ns.h b/security/apparmor/include/policy_ns.h
new file mode 100644
index 000000000..cc6e84151
--- /dev/null
+++ b/security/apparmor/include/policy_ns.h
@@ -0,0 +1,153 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * AppArmor security module
+ *
+ * This file contains AppArmor policy definitions.
+ *
+ * Copyright (C) 1998-2008 Novell/SUSE
+ * Copyright 2009-2017 Canonical Ltd.
+ */
+
+#ifndef __AA_NAMESPACE_H
+#define __AA_NAMESPACE_H
+
+#include <linux/kref.h>
+
+#include "apparmor.h"
+#include "apparmorfs.h"
+#include "label.h"
+#include "policy.h"
+
+/* Match max depth of user namespaces */
+#define MAX_NS_DEPTH 32
+
+/* struct aa_ns_acct - accounting of profiles in namespace
+ * @max_size: maximum space allowed for all profiles in namespace
+ * @max_count: maximum number of profiles that can be in this namespace
+ * @size: current size of profiles
+ * @count: current count of profiles (includes null profiles)
+ */
+struct aa_ns_acct {
+	int max_size;
+	int max_count;
+	int size;
+	int count;
+};
+
+/* struct aa_ns - namespace for a set of profiles
+ * @base: common policy
+ * @parent: parent of namespace
+ * @lock: lock for modifying the object
+ * @acct: accounting for the namespace
+ * @unconfined: special unconfined profile for the namespace
+ * @sub_ns: list of namespaces under the current namespace.
+ * @uniq_null: uniq value used for null learning profiles
+ * @uniq_id: a unique id count for the profiles in the namespace
+ * @level: level of ns within the tree hierarchy
+ * @dents: dentries for the namespaces file entries in apparmorfs
+ *
+ * An aa_ns defines the set profiles that are searched to determine which
+ * profile to attach to a task.  Profiles can not be shared between aa_ns
+ * and profile names within a namespace are guaranteed to be unique.  When
+ * profiles in separate namespaces have the same name they are NOT considered
+ * to be equivalent.
+ *
+ * Namespaces are hierarchical and only namespaces and profiles below the
+ * current namespace are visible.
+ *
+ * Namespace names must be unique and can not contain the characters :/\0
+ */
+struct aa_ns {
+	struct aa_policy base;
+	struct aa_ns *parent;
+	struct mutex lock;
+	struct aa_ns_acct acct;
+	struct aa_profile *unconfined;
+	struct list_head sub_ns;
+	atomic_t uniq_null;
+	long uniq_id;
+	int level;
+	long revision;
+	wait_queue_head_t wait;
+
+	struct aa_labelset labels;
+	struct list_head rawdata_list;
+
+	struct dentry *dents[AAFS_NS_SIZEOF];
+};
+
+extern struct aa_label *kernel_t;
+extern struct aa_ns *root_ns;
+
+extern const char *aa_hidden_ns_name;
+
+#define ns_unconfined(NS) (&(NS)->unconfined->label)
+
+bool aa_ns_visible(struct aa_ns *curr, struct aa_ns *view, bool subns);
+const char *aa_ns_name(struct aa_ns *parent, struct aa_ns *child, bool subns);
+void aa_free_ns(struct aa_ns *ns);
+int aa_alloc_root_ns(void);
+void aa_free_root_ns(void);
+
+struct aa_ns *__aa_lookupn_ns(struct aa_ns *view, const char *hname, size_t n);
+struct aa_ns *aa_lookupn_ns(struct aa_ns *view, const char *name, size_t n);
+struct aa_ns *__aa_find_or_create_ns(struct aa_ns *parent, const char *name,
+				     struct dentry *dir);
+struct aa_ns *aa_prepare_ns(struct aa_ns *root, const char *name);
+void __aa_remove_ns(struct aa_ns *ns);
+
+static inline struct aa_profile *aa_deref_parent(struct aa_profile *p)
+{
+	return rcu_dereference_protected(p->parent,
+					 mutex_is_locked(&p->ns->lock));
+}
+
+/**
+ * aa_get_ns - increment references count on @ns
+ * @ns: namespace to increment reference count of (MAYBE NULL)
+ *
+ * Returns: pointer to @ns, if @ns is NULL returns NULL
+ * Requires: @ns must be held with valid refcount when called
+ */
+static inline struct aa_ns *aa_get_ns(struct aa_ns *ns)
+{
+	if (ns)
+		aa_get_profile(ns->unconfined);
+
+	return ns;
+}
+
+/**
+ * aa_put_ns - decrement refcount on @ns
+ * @ns: namespace to put reference of
+ *
+ * Decrement reference count of @ns and if no longer in use free it
+ */
+static inline void aa_put_ns(struct aa_ns *ns)
+{
+	if (ns)
+		aa_put_profile(ns->unconfined);
+}
+
+/**
+ * __aa_findn_ns - find a namespace on a list by @name
+ * @head: list to search for namespace on  (NOT NULL)
+ * @name: name of namespace to look for  (NOT NULL)
+ * @n: length of @name
+ * Returns: unrefcounted namespace
+ *
+ * Requires: rcu_read_lock be held
+ */
+static inline struct aa_ns *__aa_findn_ns(struct list_head *head,
+					  const char *name, size_t n)
+{
+	return (struct aa_ns *)__policy_strn_find(head, name, n);
+}
+
+static inline struct aa_ns *__aa_find_ns(struct list_head *head,
+					 const char *name)
+{
+	return __aa_findn_ns(head, name, strlen(name));
+}
+
+#endif /* AA_NAMESPACE_H */
diff --git a/security/apparmor/include/policy_unpack.h b/security/apparmor/include/policy_unpack.h
new file mode 100644
index 000000000..4ea9b6479
--- /dev/null
+++ b/security/apparmor/include/policy_unpack.h
@@ -0,0 +1,215 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * AppArmor security module
+ *
+ * This file contains AppArmor policy loading interface function definitions.
+ *
+ * Copyright (C) 1998-2008 Novell/SUSE
+ * Copyright 2009-2010 Canonical Ltd.
+ */
+
+#ifndef __POLICY_INTERFACE_H
+#define __POLICY_INTERFACE_H
+
+#include <linux/list.h>
+#include <linux/kref.h>
+#include <linux/dcache.h>
+#include <linux/workqueue.h>
+
+
+struct aa_load_ent {
+	struct list_head list;
+	struct aa_profile *new;
+	struct aa_profile *old;
+	struct aa_profile *rename;
+	const char *ns_name;
+};
+
+void aa_load_ent_free(struct aa_load_ent *ent);
+struct aa_load_ent *aa_load_ent_alloc(void);
+
+#define PACKED_FLAG_HAT		1
+#define PACKED_FLAG_DEBUG1	2
+#define PACKED_FLAG_DEBUG2	4
+
+#define PACKED_MODE_ENFORCE	0
+#define PACKED_MODE_COMPLAIN	1
+#define PACKED_MODE_KILL	2
+#define PACKED_MODE_UNCONFINED	3
+#define PACKED_MODE_USER	4
+
+struct aa_ns;
+
+enum {
+	AAFS_LOADDATA_ABI = 0,
+	AAFS_LOADDATA_REVISION,
+	AAFS_LOADDATA_HASH,
+	AAFS_LOADDATA_DATA,
+	AAFS_LOADDATA_COMPRESSED_SIZE,
+	AAFS_LOADDATA_DIR,		/* must be last actual entry */
+	AAFS_LOADDATA_NDENTS		/* count of entries */
+};
+
+/*
+ * The AppArmor interface treats data as a type byte followed by the
+ * actual data.  The interface has the notion of a named entry
+ * which has a name (AA_NAME typecode followed by name string) followed by
+ * the entries typecode and data.  Named types allow for optional
+ * elements and extensions to be added and tested for without breaking
+ * backwards compatibility.
+ */
+
+enum aa_code {
+	AA_U8,
+	AA_U16,
+	AA_U32,
+	AA_U64,
+	AA_NAME,		/* same as string except it is items name */
+	AA_STRING,
+	AA_BLOB,
+	AA_STRUCT,
+	AA_STRUCTEND,
+	AA_LIST,
+	AA_LISTEND,
+	AA_ARRAY,
+	AA_ARRAYEND,
+};
+
+/*
+ * aa_ext is the read of the buffer containing the serialized profile.  The
+ * data is copied into a kernel buffer in apparmorfs and then handed off to
+ * the unpack routines.
+ */
+struct aa_ext {
+	void *start;
+	void *end;
+	void *pos;		/* pointer to current position in the buffer */
+	u32 version;
+};
+
+/* struct aa_loaddata - buffer of policy raw_data set
+ * @count: inode/filesystem refcount - use aa_get_i_loaddata()
+ * @pcount: profile refcount - use aa_get_profile_loaddata()
+ * @list: list the loaddata is on
+ * @work: used to do a delayed cleanup
+ * @dents: refs to dents created in aafs
+ * @ns: the namespace this loaddata was loaded into
+ * @name:
+ * @size: the size of the data that was loaded
+ * @compressed_size: the size of the data when it is compressed
+ * @revision: unique revision count that this data was loaded as
+ * @abi: the abi number the loaddata uses
+ * @hash: a hash of the loaddata, used to help dedup data
+ *
+ * There is no loaddata ref for being on ns->rawdata_list, so
+ * @ns->lock must be held when walking the list. Dentries and
+ * inode opens hold refs on @count; profiles hold refs on @pcount.
+ * When the last @pcount drops, do_ploaddata_rmfs() removes the
+ * fs entries and drops the associated @count ref.
+ */
+struct aa_loaddata {
+	struct aa_common_ref count;
+	struct kref pcount;
+	struct list_head list;
+	struct work_struct work;
+	struct dentry *dents[AAFS_LOADDATA_NDENTS];
+	struct aa_ns *ns;
+	char *name;
+	size_t size;			/* the original size of the payload */
+	size_t compressed_size;		/* the compressed size of the payload */
+	long revision;			/* the ns policy revision this caused */
+	int abi;
+	unsigned char *hash;
+
+	/* Pointer to payload. If @compressed_size > 0, then this is the
+	 * compressed version of the payload, else it is the uncompressed
+	 * version (with the size indicated by @size).
+	 */
+	char *data;
+};
+
+int aa_unpack(struct aa_loaddata *udata, struct list_head *lh, const char **ns);
+
+/**
+ * aa_get_i_loaddata - get a reference count from a counted data reference
+ * @data: reference to get a count on
+ *
+ * Returns: pointer to reference
+ * Requires: @data to have a valid reference count on it. It is a bug
+ *           if the race to reap can be encountered when it is used.
+ */
+static inline struct aa_loaddata *
+aa_get_i_loaddata(struct aa_loaddata *data)
+{
+
+	if (data)
+		kref_get(&(data->count.count));
+	return data;
+}
+
+
+/**
+ * aa_get_profile_loaddata - get a profile reference count on loaddata
+ * @data: reference to get a count on
+ *
+ * Returns: pointer to reference
+ * Requires: @data to have a valid reference count on it.
+ */
+static inline struct aa_loaddata *
+aa_get_profile_loaddata(struct aa_loaddata *data)
+{
+	if (data)
+		kref_get(&(data->pcount));
+	return data;
+}
+
+/**
+ * aa_get_profile_loaddata_not0 - get a profile reference count if not zero
+ * @data: reference to get a count on
+ *
+ * Like aa_get_profile_loaddata(), but safe to call on an entry that may
+ * be on a list (e.g. ns->rawdata_list) where the last pcount has already
+ * dropped and the deferred cleanup has not yet run.
+ *
+ * Returns: pointer to reference, or %NULL if @data is NULL or its
+ *          profile refcount has already reached zero.
+ */
+static inline struct aa_loaddata *
+aa_get_profile_loaddata_not0(struct aa_loaddata *data)
+{
+	if (data && kref_get_unless_zero(&data->pcount))
+		return data;
+	return NULL;
+}
+
+void __aa_loaddata_update(struct aa_loaddata *data, long revision);
+bool aa_rawdata_eq(struct aa_loaddata *l, struct aa_loaddata *r);
+void aa_loaddata_kref(struct kref *kref);
+void aa_ploaddata_kref(struct kref *kref);
+struct aa_loaddata *aa_loaddata_alloc(size_t size);
+static inline void aa_put_i_loaddata(struct aa_loaddata *data)
+{
+	if (data)
+		kref_put(&data->count.count, aa_loaddata_kref);
+}
+
+static inline void aa_put_profile_loaddata(struct aa_loaddata *data)
+{
+	if (data)
+		kref_put(&data->pcount, aa_ploaddata_kref);
+}
+
+#if IS_ENABLED(CONFIG_KUNIT)
+bool aa_inbounds(struct aa_ext *e, size_t size);
+size_t aa_unpack_u16_chunk(struct aa_ext *e, char **chunk);
+bool aa_unpack_X(struct aa_ext *e, enum aa_code code);
+bool aa_unpack_nameX(struct aa_ext *e, enum aa_code code, const char *name);
+bool aa_unpack_u32(struct aa_ext *e, u32 *data, const char *name);
+bool aa_unpack_u64(struct aa_ext *e, u64 *data, const char *name);
+bool aa_unpack_array(struct aa_ext *e, const char *name, u16 *size);
+size_t aa_unpack_blob(struct aa_ext *e, char **blob, const char *name);
+int aa_unpack_str(struct aa_ext *e, const char **string, const char *name);
+int aa_unpack_strdup(struct aa_ext *e, char **string, const char *name);
+#endif
+
+#endif /* __POLICY_INTERFACE_H */
diff --git a/security/apparmor/include/procattr.h b/security/apparmor/include/procattr.h
new file mode 100644
index 000000000..03dbfdb2f
--- /dev/null
+++ b/security/apparmor/include/procattr.h
@@ -0,0 +1,17 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * AppArmor security module
+ *
+ * This file contains AppArmor /proc/<pid>/attr/ interface function definitions.
+ *
+ * Copyright (C) 1998-2008 Novell/SUSE
+ * Copyright 2009-2010 Canonical Ltd.
+ */
+
+#ifndef __AA_PROCATTR_H
+#define __AA_PROCATTR_H
+
+int aa_getprocattr(struct aa_label *label, char **string, bool newline);
+int aa_setprocattr_changehat(char *args, size_t size, int flags);
+
+#endif /* __AA_PROCATTR_H */
diff --git a/security/apparmor/include/resource.h b/security/apparmor/include/resource.h
new file mode 100644
index 000000000..ad2c0da8e
--- /dev/null
+++ b/security/apparmor/include/resource.h
@@ -0,0 +1,47 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * AppArmor security module
+ *
+ * This file contains AppArmor resource limits function definitions.
+ *
+ * Copyright (C) 1998-2008 Novell/SUSE
+ * Copyright 2009-2010 Canonical Ltd.
+ */
+
+#ifndef __AA_RESOURCE_H
+#define __AA_RESOURCE_H
+
+#include <linux/resource.h>
+#include <linux/sched.h>
+
+#include "apparmorfs.h"
+
+struct aa_profile;
+
+/* struct aa_rlimit - rlimit settings for the profile
+ * @mask: which hard limits to set
+ * @limits: rlimit values that override task limits
+ *
+ * AppArmor rlimits are used to set confined task rlimits.  Only the
+ * limits specified in @mask will be controlled by apparmor.
+ */
+struct aa_rlimit {
+	unsigned int mask;
+	struct rlimit limits[RLIM_NLIMITS];
+};
+
+extern struct aa_sfs_entry aa_sfs_entry_rlimit[];
+
+int aa_map_resource(int resource);
+int aa_task_setrlimit(const struct cred *subj_cred, struct aa_label *label,
+		      struct task_struct *task,
+		      unsigned int resource, struct rlimit *new_rlim);
+
+void __aa_transition_rlimits(struct aa_label *old, struct aa_label *new);
+
+static inline void aa_free_rlimit_rules(struct aa_rlimit *rlims)
+{
+	/* NOP */
+}
+
+#endif /* __AA_RESOURCE_H */
diff --git a/security/apparmor/include/secid.h b/security/apparmor/include/secid.h
new file mode 100644
index 000000000..6025d3849
--- /dev/null
+++ b/security/apparmor/include/secid.h
@@ -0,0 +1,37 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * AppArmor security module
+ *
+ * This file contains AppArmor security identifier (secid) definitions
+ *
+ * Copyright 2009-2018 Canonical Ltd.
+ */
+
+#ifndef __AA_SECID_H
+#define __AA_SECID_H
+
+#include <linux/slab.h>
+#include <linux/types.h>
+
+struct aa_label;
+
+/* secid value that will not be allocated */
+#define AA_SECID_INVALID 0
+
+/* secid value that matches any other secid */
+#define AA_SECID_WILDCARD 1
+
+/* sysctl to enable displaying mode when converting secid to secctx */
+extern int apparmor_display_secid_mode;
+
+struct aa_label *aa_secid_to_label(u32 secid);
+int apparmor_secid_to_secctx(u32 secid, struct lsm_context *cp);
+int apparmor_lsmprop_to_secctx(struct lsm_prop *prop, struct lsm_context *cp);
+int apparmor_secctx_to_secid(const char *secdata, u32 seclen, u32 *secid);
+void apparmor_release_secctx(struct lsm_context *cp);
+
+
+int aa_alloc_secid(struct aa_label *label, gfp_t gfp);
+void aa_free_secid(u32 secid);
+
+#endif /* __AA_SECID_H */
diff --git a/security/apparmor/include/sig_names.h b/security/apparmor/include/sig_names.h
new file mode 100644
index 000000000..c772668cd
--- /dev/null
+++ b/security/apparmor/include/sig_names.h
@@ -0,0 +1,97 @@
+#include <linux/signal.h>
+#include "signal.h"
+
+/* provide a mapping of arch signal to internal signal # for mediation
+ * those that are always an alias SIGCLD for SIGCLHD and SIGPOLL for SIGIO
+ * map to the same entry those that may/or may not get a separate entry
+ */
+static const int sig_map[MAXMAPPED_SIG] = {
+	[0] = MAXMAPPED_SIG,	/* existence test */
+	[SIGHUP] = 1,
+	[SIGINT] = 2,
+	[SIGQUIT] = 3,
+	[SIGILL] = 4,
+	[SIGTRAP] = 5,		/* -, 5, - */
+	[SIGABRT] = 6,		/*  SIGIOT: -, 6, - */
+	[SIGBUS] = 7,		/* 10, 7, 10 */
+	[SIGFPE] = 8,
+	[SIGKILL] = 9,
+	[SIGUSR1] = 10,		/* 30, 10, 16 */
+	[SIGSEGV] = 11,
+	[SIGUSR2] = 12,		/* 31, 12, 17 */
+	[SIGPIPE] = 13,
+	[SIGALRM] = 14,
+	[SIGTERM] = 15,
+#ifdef SIGSTKFLT
+	[SIGSTKFLT] = 16,	/* -, 16, - */
+#endif
+	[SIGCHLD] = 17,		/* 20, 17, 18.  SIGCHLD -, -, 18 */
+	[SIGCONT] = 18,		/* 19, 18, 25 */
+	[SIGSTOP] = 19,		/* 17, 19, 23 */
+	[SIGTSTP] = 20,		/* 18, 20, 24 */
+	[SIGTTIN] = 21,		/* 21, 21, 26 */
+	[SIGTTOU] = 22,		/* 22, 22, 27 */
+	[SIGURG] = 23,		/* 16, 23, 21 */
+	[SIGXCPU] = 24,		/* 24, 24, 30 */
+	[SIGXFSZ] = 25,		/* 25, 25, 31 */
+	[SIGVTALRM] = 26,	/* 26, 26, 28 */
+	[SIGPROF] = 27,		/* 27, 27, 29 */
+	[SIGWINCH] = 28,	/* 28, 28, 20 */
+	[SIGIO] = 29,		/* SIGPOLL: 23, 29, 22 */
+	[SIGPWR] = 30,		/* 29, 30, 19.  SIGINFO 29, -, - */
+#ifdef SIGSYS
+	[SIGSYS] = 31,		/* 12, 31, 12. often SIG LOST/UNUSED */
+#endif
+#ifdef SIGEMT
+	[SIGEMT] = 32,		/* 7, - , 7 */
+#endif
+#if defined(SIGLOST) && SIGPWR != SIGLOST		/* sparc */
+	[SIGLOST] = 33,		/* unused on Linux */
+#endif
+#if defined(SIGUNUSED) && \
+    defined(SIGLOST) && defined(SIGSYS) && SIGLOST != SIGSYS
+	[SIGUNUSED] = 34,	/* -, 31, - */
+#endif
+};
+
+/* this table is ordered post sig_map[sig] mapping */
+static const char *const sig_names[MAXMAPPED_SIGNAME] = {
+	"unknown",
+	"hup",
+	"int",
+	"quit",
+	"ill",
+	"trap",
+	"abrt",
+	"bus",
+	"fpe",
+	"kill",
+	"usr1",
+	"segv",
+	"usr2",
+	"pipe",
+	"alrm",
+	"term",
+	"stkflt",
+	"chld",
+	"cont",
+	"stop",
+	"stp",
+	"ttin",
+	"ttou",
+	"urg",
+	"xcpu",
+	"xfsz",
+	"vtalrm",
+	"prof",
+	"winch",
+	"io",
+	"pwr",
+	"sys",
+	"emt",
+	"lost",
+	"unused",
+
+	"exists",	/* always last existence test mapped to MAXMAPPED_SIG */
+};
+
diff --git a/security/apparmor/include/signal.h b/security/apparmor/include/signal.h
new file mode 100644
index 000000000..729763fa7
--- /dev/null
+++ b/security/apparmor/include/signal.h
@@ -0,0 +1,19 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * AppArmor security module
+ *
+ * This file contains AppArmor ipc mediation function definitions.
+ *
+ * Copyright 2023 Canonical Ltd.
+ */
+
+#ifndef __AA_SIGNAL_H
+#define __AA_SIGNAL_H
+
+#define SIGUNKNOWN 0
+#define MAXMAPPED_SIG 35
+
+#define MAXMAPPED_SIGNAME (MAXMAPPED_SIG + 1)
+#define SIGRT_BASE 128
+
+#endif /* __AA_SIGNAL_H */
diff --git a/security/apparmor/include/task.h b/security/apparmor/include/task.h
new file mode 100644
index 000000000..b1aaaf60f
--- /dev/null
+++ b/security/apparmor/include/task.h
@@ -0,0 +1,105 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * AppArmor security module
+ *
+ * This file contains AppArmor task related definitions and mediation
+ *
+ * Copyright 2017 Canonical Ltd.
+ */
+
+#ifndef __AA_TASK_H
+#define __AA_TASK_H
+
+static inline struct aa_task_ctx *task_ctx(struct task_struct *task)
+{
+	return task->security + apparmor_blob_sizes.lbs_task;
+}
+
+/*
+ * struct aa_task_ctx - information for current task label change
+ * @nnp: snapshot of label at time of no_new_privs
+ * @onexec: profile to transition to on next exec  (MAY BE NULL)
+ * @previous: profile the task may return to     (MAY BE NULL)
+ * @token: magic value the task must know for returning to @previous_profile
+ */
+struct aa_task_ctx {
+	struct aa_label *nnp;
+	struct aa_label *onexec;
+	struct aa_label *previous;
+	u64 token;
+};
+
+int aa_replace_current_label(struct aa_label *label);
+void aa_set_current_onexec(struct aa_label *label, bool stack);
+int aa_set_current_hat(struct aa_label *label, u64 token);
+int aa_restore_previous_label(u64 cookie);
+struct aa_label *aa_get_task_label(struct task_struct *task);
+
+/**
+ * aa_free_task_ctx - free a task_ctx
+ * @ctx: task_ctx to free (MAYBE NULL)
+ */
+static inline void aa_free_task_ctx(struct aa_task_ctx *ctx)
+{
+	if (ctx) {
+		aa_put_label(ctx->nnp);
+		aa_put_label(ctx->previous);
+		aa_put_label(ctx->onexec);
+	}
+}
+
+/**
+ * aa_dup_task_ctx - duplicate a task context, incrementing reference counts
+ * @new: a blank task context      (NOT NULL)
+ * @old: the task context to copy  (NOT NULL)
+ */
+static inline void aa_dup_task_ctx(struct aa_task_ctx *new,
+				   const struct aa_task_ctx *old)
+{
+	*new = *old;
+	aa_get_label(new->nnp);
+	aa_get_label(new->previous);
+	aa_get_label(new->onexec);
+}
+
+/**
+ * aa_clear_task_ctx_trans - clear transition tracking info from the ctx
+ * @ctx: task context to clear (NOT NULL)
+ */
+static inline void aa_clear_task_ctx_trans(struct aa_task_ctx *ctx)
+{
+	AA_BUG(!ctx);
+
+	aa_put_label(ctx->previous);
+	aa_put_label(ctx->onexec);
+	ctx->previous = NULL;
+	ctx->onexec = NULL;
+	ctx->token = 0;
+}
+
+#define AA_PTRACE_TRACE		MAY_WRITE
+#define AA_PTRACE_READ		MAY_READ
+#define AA_MAY_BE_TRACED	AA_MAY_APPEND
+#define AA_MAY_BE_READ		AA_MAY_CREATE
+#define PTRACE_PERM_SHIFT	2
+
+#define AA_PTRACE_PERM_MASK (AA_PTRACE_READ | AA_PTRACE_TRACE | \
+			     AA_MAY_BE_READ | AA_MAY_BE_TRACED)
+#define AA_SIGNAL_PERM_MASK (MAY_READ | MAY_WRITE)
+
+#define AA_SFS_SIG_MASK "hup int quit ill trap abrt bus fpe kill usr1 " \
+	"segv usr2 pipe alrm term stkflt chld cont stop stp ttin ttou urg " \
+	"xcpu xfsz vtalrm prof winch io pwr sys emt lost"
+
+int aa_may_ptrace(const struct cred *tracer_cred, struct aa_label *tracer,
+		  const struct cred *tracee_cred, struct aa_label *tracee,
+		  u32 request);
+
+
+
+#define AA_USERNS_CREATE	8
+
+int aa_profile_ns_perm(struct aa_profile *profile,
+		       struct apparmor_audit_data *ad, u32 request);
+
+#endif /* __AA_TASK_H */